merge

Signed-off-by: Woosuk Kwon <woosuk.kwon@berkeley.edu>

.buildkite/release-pipeline.yaml

@@ -62,12 +62,8 @@ steps:
     env:
       DOCKER_BUILDKIT: "1"
 
-  - block: "Build release image (x86)"
-    depends_on: ~
-    key: block-release-image-build
-
   - label: "Build release image (x86)"
-    depends_on: block-release-image-build
+    depends_on: ~
     id: build-release-image-x86
     agents:
       queue: cpu_queue_postmerge
@@ -80,7 +76,7 @@ steps:
       - "docker push public.ecr.aws/q9t5s3a7/vllm-release-repo:$BUILDKITE_COMMIT"
 
   - label: "Build release image (arm64)"
-    depends_on: block-release-image-build
+    depends_on: ~
     id: build-release-image-arm64
     agents:
       queue: arm64_cpu_queue_postmerge

.buildkite/scripts/hardware_ci/run-amd-test.sh

@@ -164,7 +164,6 @@ if [[ $commands == *" entrypoints/llm "* ]]; then
   --ignore=entrypoints/llm/test_chat.py \
   --ignore=entrypoints/llm/test_accuracy.py \
   --ignore=entrypoints/llm/test_init.py \
-  --ignore=entrypoints/llm/test_generate_multiple_loras.py \
   --ignore=entrypoints/llm/test_prompt_validation.py "}
 fi
 

.buildkite/scripts/hardware_ci/run-cpu-test.sh

@@ -25,8 +25,8 @@ numactl -C "$CORE_RANGE" -N "$NUMA_NODE" docker build --tag cpu-test-"$NUMA_NODE
 numactl -C "$CORE_RANGE" -N "$NUMA_NODE" docker build --build-arg VLLM_CPU_DISABLE_AVX512="true" --tag cpu-test-"$NUMA_NODE"-avx2 --target vllm-test -f docker/Dockerfile.cpu .
 
 # Run the image, setting --shm-size=4g for tensor parallel.
-docker run -itd --cpuset-cpus="$CORE_RANGE" --cpuset-mems="$NUMA_NODE" --entrypoint /bin/bash -v ~/.cache/huggingface:/root/.cache/huggingface --privileged=true -e HF_TOKEN --env VLLM_CPU_KVCACHE_SPACE=4 --env VLLM_CPU_CI_ENV=1 -e E2E_OMP_THREADS="$OMP_CORE_RANGE" --shm-size=4g --name cpu-test-"$NUMA_NODE" cpu-test-"$NUMA_NODE"
-docker run -itd --cpuset-cpus="$CORE_RANGE" --cpuset-mems="$NUMA_NODE" --entrypoint /bin/bash -v ~/.cache/huggingface:/root/.cache/huggingface --privileged=true -e HF_TOKEN --env VLLM_CPU_KVCACHE_SPACE=4 --env VLLM_CPU_CI_ENV=1 -e E2E_OMP_THREADS="$OMP_CORE_RANGE" --shm-size=4g --name cpu-test-"$NUMA_NODE"-avx2 cpu-test-"$NUMA_NODE"-avx2
+docker run -itd --cpuset-cpus="$CORE_RANGE" --cpuset-mems="$NUMA_NODE" --entrypoint /bin/bash -v ~/.cache/huggingface:/root/.cache/huggingface --privileged=true -e HF_TOKEN --env VLLM_CPU_KVCACHE_SPACE=16 --env VLLM_CPU_CI_ENV=1 -e E2E_OMP_THREADS="$OMP_CORE_RANGE" --shm-size=4g --name cpu-test-"$NUMA_NODE" cpu-test-"$NUMA_NODE"
+docker run -itd --cpuset-cpus="$CORE_RANGE" --cpuset-mems="$NUMA_NODE" --entrypoint /bin/bash -v ~/.cache/huggingface:/root/.cache/huggingface --privileged=true -e HF_TOKEN --env VLLM_CPU_KVCACHE_SPACE=16 --env VLLM_CPU_CI_ENV=1 -e E2E_OMP_THREADS="$OMP_CORE_RANGE" --shm-size=4g --name cpu-test-"$NUMA_NODE"-avx2 cpu-test-"$NUMA_NODE"-avx2
 
 function cpu_tests() {
   set -e
@@ -89,17 +89,33 @@ function cpu_tests() {
     pytest -x -s -v \
     tests/lora/test_qwen2vl.py"
 
-  # online serving
+  # online serving: tp+pp
   docker exec cpu-test-"$NUMA_NODE" bash -c '
     set -e
     VLLM_CPU_OMP_THREADS_BIND=$E2E_OMP_THREADS VLLM_CPU_SGL_KERNEL=1 vllm serve meta-llama/Llama-3.2-3B-Instruct -tp=2 -pp=2 &
+    server_pid=$!
     timeout 600 bash -c "until curl localhost:8000/v1/models; do sleep 1; done" || exit 1
     vllm bench serve \
       --backend vllm \
       --dataset-name random \
       --model meta-llama/Llama-3.2-3B-Instruct \
       --num-prompts 20 \
-      --endpoint /v1/completions'
+      --endpoint /v1/completions
+    kill -s SIGTERM $server_pid &'
+
+  # online serving: tp+dp
+  docker exec cpu-test-"$NUMA_NODE" bash -c '
+    set -e
+    VLLM_CPU_OMP_THREADS_BIND=$E2E_OMP_THREADS VLLM_CPU_SGL_KERNEL=1 vllm serve meta-llama/Llama-3.2-3B-Instruct -tp=2 -dp=2 &
+    server_pid=$!
+    timeout 600 bash -c "until curl localhost:8000/v1/models; do sleep 1; done" || exit 1
+    vllm bench serve \
+      --backend vllm \
+      --dataset-name random \
+      --model meta-llama/Llama-3.2-3B-Instruct \
+      --num-prompts 20 \
+      --endpoint /v1/completions
+    kill -s SIGTERM $server_pid &'
 }
 
 # All of CPU tests are expected to be finished less than 40 mins.

.buildkite/test-pipeline.yaml

@@ -109,10 +109,9 @@ steps:
   - tests/entrypoints/offline_mode
   commands:
   - export VLLM_WORKER_MULTIPROC_METHOD=spawn
-  - pytest -v -s entrypoints/llm --ignore=entrypoints/llm/test_lazy_outlines.py --ignore=entrypoints/llm/test_generate.py --ignore=entrypoints/llm/test_generate_multiple_loras.py --ignore=entrypoints/llm/test_collective_rpc.py
+  - pytest -v -s entrypoints/llm --ignore=entrypoints/llm/test_lazy_outlines.py --ignore=entrypoints/llm/test_generate.py --ignore=entrypoints/llm/test_collective_rpc.py
   - pytest -v -s entrypoints/llm/test_lazy_outlines.py # it needs a clean process
   - pytest -v -s entrypoints/llm/test_generate.py # it needs a clean process
-  - pytest -v -s entrypoints/llm/test_generate_multiple_loras.py # it needs a clean process
   - VLLM_USE_V1=0 pytest -v -s entrypoints/offline_mode # Needs to avoid interference with other tests
 
 - label: Entrypoints Test (API Server) # 40min
@@ -326,7 +325,7 @@ steps:
   source_file_dependencies:
   - vllm/lora
   - tests/lora
-  command: pytest -v -s lora --shard-id=$$BUILDKITE_PARALLEL_JOB --num-shards=$$BUILDKITE_PARALLEL_JOB_COUNT --ignore=lora/test_chatglm3_tp.py --ignore=lora/test_llama_tp.py
+  command: pytest -v -s lora --shard-id=$$BUILDKITE_PARALLEL_JOB --num-shards=$$BUILDKITE_PARALLEL_JOB_COUNT --ignore=lora/test_chatglm3_tp.py --ignore=lora/test_llama_tp.py --ignore=lora/test_llm_with_multi_loras.py
   parallelism: 4
 
 - label: PyTorch Compilation Unit Tests
@@ -463,8 +462,8 @@ steps:
   - tests/quantization
   commands:
   # temporary install here since we need nightly, will move to requirements/test.in
-  # after torchao 0.12 release
-  - pip install --pre torchao --index-url https://download.pytorch.org/whl/nightly/cu126
+  # after torchao 0.12 release, and pin a working version of torchao nightly here
+  - pip install --pre torchao==0.13.0.dev20250814 --index-url https://download.pytorch.org/whl/nightly/cu128
   - VLLM_TEST_FORCE_LOAD_FORMAT=auto pytest -v -s quantization
 
 - label: LM Eval Small Models # 53min
@@ -668,6 +667,7 @@ steps:
     # Quantization
     - pytest -v -s tests/kernels/quantization/test_cutlass_scaled_mm.py -k 'fp8'
     - pytest -v -s tests/kernels/quantization/test_nvfp4_quant.py
+    - pytest -v -s tests/kernels/quantization/test_silu_nvfp4_quant_fusion.py
     - pytest -v -s tests/kernels/quantization/test_nvfp4_scaled_mm.py
     - pytest -v -s tests/kernels/quantization/test_flashinfer_scaled_mm.py
     - pytest -v -s tests/kernels/quantization/test_flashinfer_nvfp4_scaled_mm.py
@@ -677,6 +677,7 @@ steps:
     - pytest -v -s tests/compile/test_fusion_all_reduce.py
     - pytest -v -s tests/compile/test_fusion_attn.py::test_attention_quant_pattern
     - pytest -v -s tests/kernels/moe/test_flashinfer.py
+    - pytest -v -s tests/compile/test_silu_mul_quant_fusion.py
 
 #####  1 GPU test  #####
 #####  multi gpus test  #####
@@ -805,7 +806,7 @@ steps:
     # requires multi-GPU testing for validation.
     - pytest -v -s -x lora/test_chatglm3_tp.py
     - pytest -v -s -x lora/test_llama_tp.py
-    - pytest -v -s -x lora/test_multi_loras_with_tp.py
+    - pytest -v -s -x lora/test_llm_with_multi_loras.py
 
 
 - label: Weight Loading Multiple GPU Test  # 33min

.github/workflows/issue_autolabel.yml

@@ -49,6 +49,10 @@ jobs:
                     term: "VLLM_ROCM_",
                     searchIn: "both"
                   },
+                  {
+                    term: "aiter",
+                    searchIn: "title"
+                  },
                   {
                     term: "rocm",
                     searchIn: "title"

CMakeLists.txt

@@ -45,8 +45,8 @@ set(HIP_SUPPORTED_ARCHS "gfx906;gfx908;gfx90a;gfx942;gfx950;gfx1030;gfx1100;gfx1
 # requirements.txt files and should be kept consistent.  The ROCm torch
 # versions are derived from docker/Dockerfile.rocm
 #
-set(TORCH_SUPPORTED_VERSION_CUDA "2.7.1")
-set(TORCH_SUPPORTED_VERSION_ROCM "2.7.0")
+set(TORCH_SUPPORTED_VERSION_CUDA "2.8.0")
+set(TORCH_SUPPORTED_VERSION_ROCM "2.8.0")
 
 #
 # Try to find python package with an executable that exactly matches
@@ -541,6 +541,7 @@ if(VLLM_GPU_LANG STREQUAL "CUDA")
   if(${CMAKE_CUDA_COMPILER_VERSION} VERSION_GREATER_EQUAL 12.8 AND FP4_ARCHS)
     set(SRCS
       "csrc/quantization/fp4/nvfp4_quant_kernels.cu"
+      "csrc/quantization/fp4/activation_nvfp4_quant_fusion_kernels.cu"
       "csrc/quantization/fp4/nvfp4_scaled_mm_sm120_kernels.cu")
     set_gencode_flags_for_srcs(
       SRCS "${SRCS}"
@@ -559,6 +560,7 @@ if(VLLM_GPU_LANG STREQUAL "CUDA")
   if(${CMAKE_CUDA_COMPILER_VERSION} VERSION_GREATER_EQUAL 12.8 AND FP4_ARCHS)
     set(SRCS
       "csrc/quantization/fp4/nvfp4_quant_kernels.cu"
+      "csrc/quantization/fp4/activation_nvfp4_quant_fusion_kernels.cu"
       "csrc/quantization/fp4/nvfp4_experts_quant.cu"
       "csrc/quantization/fp4/nvfp4_scaled_mm_kernels.cu"
       "csrc/quantization/fp4/nvfp4_blockwise_moe_kernel.cu")

benchmarks/kernels/bench_block_fp8_gemm.py

@@ -16,6 +16,7 @@ assert current_platform.is_cuda(), (
 # DeepSeek-V3 weight shapes
 DEEPSEEK_V3_SHAPES = [
     (512 + 64, 7168),
+    (2112, 7168),
     ((128 + 64) * 128, 7168),
     (128 * (128 + 128), 512),
     (7168, 16384),

benchmarks/kernels/benchmark_w8a8_block_fp8.py

@@ -141,6 +141,7 @@ def get_weight_shapes(tp_size):
     # cannot TP
     total = [
         (512 + 64, 7168),
+        (2112, 7168),
         ((128 + 64) * 128, 7168),
         (128 * (128 + 128), 512),
         (7168, 16384),

csrc/cache_kernels.cu

@@ -913,7 +913,6 @@ __global__ void cp_gather_cache(
   const int32_t split_end = min((split + 1) * split_slots, tot_slots);
 
   const bool is_active_split = (split_start < tot_slots);
-  const bool is_last_split = (split_end == tot_slots);
 
   if (!is_active_split) return;
 

csrc/dispatch_utils.h

@@ -19,6 +19,13 @@
 #define VLLM_DISPATCH_FLOATING_TYPES(TYPE, NAME, ...) \
   AT_DISPATCH_SWITCH(TYPE, NAME, VLLM_DISPATCH_CASE_FLOATING_TYPES(__VA_ARGS__))
 
+#define VLLM_DISPATCH_CASE_HALF_TYPES(...)            \
+  AT_DISPATCH_CASE(at::ScalarType::Half, __VA_ARGS__) \
+  AT_DISPATCH_CASE(at::ScalarType::BFloat16, __VA_ARGS__)
+
+#define VLLM_DISPATCH_HALF_TYPES(TYPE, NAME, ...) \
+  AT_DISPATCH_SWITCH(TYPE, NAME, VLLM_DISPATCH_CASE_HALF_TYPES(__VA_ARGS__))
+
 // ROCm devices might use either fn or fnuz, so set up dispatch table for both.
 // A host-based check at runtime will create a preferred FP8 type for ROCm
 // such that the correct kernel is dispatched.
@@ -45,6 +52,15 @@
 #define VLLM_DISPATCH_FP8_TYPES(TYPE, NAME, ...) \
   AT_DISPATCH_SWITCH(TYPE, NAME, VLLM_DISPATCH_CASE_FP8_TYPES(__VA_ARGS__))
 
+#define AT_DISPATCH_BYTE_CASE(enum_type, ...) \
+  AT_PRIVATE_CASE_TYPE_USING_HINT(enum_type, byte_t, __VA_ARGS__)
+
+#define VLLM_DISPATCH_CASE_BYTE_TYPES(...) \
+  AT_DISPATCH_BYTE_CASE(at::ScalarType::Byte, __VA_ARGS__)
+
+#define VLLM_DISPATCH_BYTE_TYPES(TYPE, NAME, ...) \
+  AT_DISPATCH_SWITCH(TYPE, NAME, VLLM_DISPATCH_CASE_BYTE_TYPES(__VA_ARGS__))
+
 #define VLLM_DISPATCH_QUANT_TYPES(TYPE, NAME, ...) \
   AT_DISPATCH_SWITCH(TYPE, NAME, VLLM_DISPATCH_CASE_QUANT_TYPES(__VA_ARGS__))
 

csrc/ops.h

@@ -130,6 +130,14 @@ void silu_and_mul(torch::Tensor& out, torch::Tensor& input);
 void silu_and_mul_quant(torch::Tensor& out, torch::Tensor& input,
                         torch::Tensor& scale);
 
+#if (defined(ENABLE_NVFP4_SM100) && ENABLE_NVFP4_SM100) || \
+    (defined(ENABLE_NVFP4_SM120) && ENABLE_NVFP4_SM120)
+void silu_and_mul_nvfp4_quant(torch::Tensor& out,
+                              torch::Tensor& output_block_scale,
+                              torch::Tensor& input,
+                              torch::Tensor& input_global_scale);
+#endif
+
 void mul_and_silu(torch::Tensor& out, torch::Tensor& input);
 
 void gelu_and_mul(torch::Tensor& out, torch::Tensor& input);

csrc/quantization/fp4/activation_nvfp4_quant_fusion_kernels.cu

@@ -0,0 +1,368 @@
+/*
+ * Copyright (c) 2025, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <torch/all.h>
+
+#include <cuda_runtime_api.h>
+#include <cuda_runtime.h>
+
+#include <ATen/cuda/CUDAContext.h>
+#include <c10/cuda/CUDAGuard.h>
+
+#include <cuda_fp8.h>
+#include "dispatch_utils.h"
+
+#include "cuda_utils.h"
+
+namespace vllm {
+
+// Get type2 from type or vice versa (applied to half and bfloat16)
+template <typename T>
+struct TypeConverter {
+  using Type = half2;
+};  // keep for generality
+
+template <>
+struct TypeConverter<half2> {
+  using Type = c10::Half;
+};
+
+template <>
+struct TypeConverter<c10::Half> {
+  using Type = half2;
+};
+
+template <>
+struct TypeConverter<__nv_bfloat162> {
+  using Type = c10::BFloat16;
+};
+
+template <>
+struct TypeConverter<c10::BFloat16> {
+  using Type = __nv_bfloat162;
+};
+
+#define ELTS_PER_THREAD 8
+
+constexpr int CVT_FP4_ELTS_PER_THREAD = 8;
+constexpr int CVT_FP4_SF_VEC_SIZE = 16;
+
+// Convert 8 float32 values into 8 e2m1 values (represented as one uint32_t).
+inline __device__ uint32_t fp32_vec_to_e2m1(float (&array)[8]) {
+#if defined(__CUDA_ARCH__) && (__CUDA_ARCH__ >= 1000)
+  uint32_t val;
+  asm volatile(
+      "{\n"
+      ".reg .b8 byte0;\n"
+      ".reg .b8 byte1;\n"
+      ".reg .b8 byte2;\n"
+      ".reg .b8 byte3;\n"
+      "cvt.rn.satfinite.e2m1x2.f32   byte0, %2, %1;\n"
+      "cvt.rn.satfinite.e2m1x2.f32   byte1, %4, %3;\n"
+      "cvt.rn.satfinite.e2m1x2.f32   byte2, %6, %5;\n"
+      "cvt.rn.satfinite.e2m1x2.f32   byte3, %8, %7;\n"
+      "mov.b32 %0, {byte0, byte1, byte2, byte3};\n"
+      "}"
+      : "=r"(val)
+      : "f"(array[0]), "f"(array[1]), "f"(array[2]), "f"(array[3]),
+        "f"(array[4]), "f"(array[5]), "f"(array[6]), "f"(array[7]));
+  return val;
+#else
+  return 0;
+#endif
+}
+
+// Convert 4 float2 values into 8 e2m1 values (represented as one uint32_t).
+inline __device__ uint32_t fp32_vec_to_e2m1(float2 (&array)[4]) {
+#if defined(__CUDA_ARCH__) && (__CUDA_ARCH__ >= 1000)
+  uint32_t val;
+  asm volatile(
+      "{\n"
+      ".reg .b8 byte0;\n"
+      ".reg .b8 byte1;\n"
+      ".reg .b8 byte2;\n"
+      ".reg .b8 byte3;\n"
+      "cvt.rn.satfinite.e2m1x2.f32   byte0, %2, %1;\n"
+      "cvt.rn.satfinite.e2m1x2.f32   byte1, %4, %3;\n"
+      "cvt.rn.satfinite.e2m1x2.f32   byte2, %6, %5;\n"
+      "cvt.rn.satfinite.e2m1x2.f32   byte3, %8, %7;\n"
+      "mov.b32 %0, {byte0, byte1, byte2, byte3};\n"
+      "}"
+      : "=r"(val)
+      : "f"(array[0].x), "f"(array[0].y), "f"(array[1].x), "f"(array[1].y),
+        "f"(array[2].x), "f"(array[2].y), "f"(array[3].x), "f"(array[3].y));
+  return val;
+#else
+  return 0;
+#endif
+}
+
+// Fast reciprocal.
+inline __device__ float reciprocal_approximate_ftz(float a) {
+  float b;
+  asm volatile("rcp.approx.ftz.f32 %0, %1;\n" : "=f"(b) : "f"(a));
+  return b;
+}
+
+template <class SFType, int CVT_FP4_NUM_THREADS_PER_SF>
+__device__ uint8_t* cvt_quant_to_fp4_get_sf_out_offset(int rowIdx, int colIdx,
+                                                       int numCols,
+                                                       SFType* SFout) {
+#if defined(__CUDA_ARCH__) && (__CUDA_ARCH__ >= 1000)
+  static_assert(CVT_FP4_NUM_THREADS_PER_SF == 1 ||
+                CVT_FP4_NUM_THREADS_PER_SF == 2);
+
+  // One pair of threads write one SF to global memory.
+  // TODO: stage through smem for packed STG.32
+  // is it better than STG.8 from 4 threads ?
+  if (threadIdx.x % CVT_FP4_NUM_THREADS_PER_SF == 0) {
+    // SF vector index (16 elements share one SF in the K dimension).
+    int32_t kIdx = colIdx / CVT_FP4_NUM_THREADS_PER_SF;
+    int32_t mIdx = rowIdx;
+
+    // SF layout [numMTiles, numKTiles, 32 (mTile), 4 (mTile), 4(kTile)]
+    // --> index [mTileIdx, kTileIdx, outerMIdx, innerMIdx, innerKIdx]
+
+    int32_t mTileIdx = mIdx / (32 * 4);
+    // SF vector size 16.
+    int factor = CVT_FP4_SF_VEC_SIZE * 4;
+    int32_t numKTiles = (numCols + factor - 1) / factor;
+    int64_t mTileStride = numKTiles * 32 * 4 * 4;
+
+    int32_t kTileIdx = (kIdx / 4);
+    int64_t kTileStride = 32 * 4 * 4;
+
+    // M tile layout [32, 4] is column-major.
+    int32_t outerMIdx = (mIdx % 32);
+    int64_t outerMStride = 4 * 4;
+
+    int32_t innerMIdx = (mIdx % (32 * 4)) / 32;
+    int64_t innerMStride = 4;
+
+    int32_t innerKIdx = (kIdx % 4);
+    int64_t innerKStride = 1;
+
+    // Compute the global offset.
+    int64_t SFOffset = mTileIdx * mTileStride + kTileIdx * kTileStride +
+                       outerMIdx * outerMStride + innerMIdx * innerMStride +
+                       innerKIdx * innerKStride;
+
+    return reinterpret_cast<uint8_t*>(SFout) + SFOffset;
+  }
+#endif
+  return nullptr;
+}
+
+// Define a 16 bytes packed data type.
+template <class Type>
+struct PackedVec {
+  typename TypeConverter<Type>::Type elts[4];
+};
+
+template <>
+struct PackedVec<__nv_fp8_e4m3> {
+  __nv_fp8x2_e4m3 elts[8];
+};
+
+template <class Type>
+__inline__ __device__ PackedVec<Type> compute_silu(PackedVec<Type>& vec,
+                                                   PackedVec<Type>& vec2) {
+  PackedVec<Type> result;
+#pragma unroll
+  for (int i = 0; i < CVT_FP4_ELTS_PER_THREAD / 2; ++i) {
+    if constexpr (std::is_same_v<Type, c10::Half>) {
+      half2 val(0.5f, 0.5f);
+      half2 t0 = __hmul2(vec.elts[i], val);
+      half2 t1 = __hfma2(h2tanh(t0), val, val);
+      half2 t2 = __hmul2(vec.elts[i], t1);
+      result.elts[i] = __hmul2(t2, vec2.elts[i]);
+    } else {
+      __nv_bfloat162 val(0.5f, 0.5f);
+      __nv_bfloat162 t0 = __hmul2(vec.elts[i], val);
+      __nv_bfloat162 t1 = __hfma2(h2tanh(t0), val, val);
+      __nv_bfloat162 t2 = __hmul2(vec.elts[i], t1);
+      result.elts[i] = __hmul2(t2, vec2.elts[i]);
+    }
+  }
+  return result;
+}
+
+// Quantizes the provided PackedVec into the uint32_t output
+template <class Type, bool UE8M0_SF = false>
+__device__ uint32_t silu_and_cvt_warp_fp16_to_fp4(PackedVec<Type>& vec,
+                                                  PackedVec<Type>& vec2,
+                                                  float SFScaleVal,
+                                                  uint8_t* SFout) {
+#if defined(__CUDA_ARCH__) && (__CUDA_ARCH__ >= 1000)
+  PackedVec<Type> out_silu = compute_silu(vec, vec2);
+  // Get absolute maximum values among the local 8 values.
+  auto localMax = __habs2(out_silu.elts[0]);
+
+  // Local maximum value.
+  #pragma unroll
+  for (int i = 1; i < CVT_FP4_ELTS_PER_THREAD / 2; i++) {
+    localMax = __hmax2(localMax, __habs2(out_silu.elts[i]));
+  }
+
+  // Get the absolute maximum among all 16 values (two threads).
+  localMax = __hmax2(__shfl_xor_sync(uint32_t(-1), localMax, 1), localMax);
+  // Get the final absolute maximum values.
+  float vecMax = float(__hmax(localMax.x, localMax.y));
+
+  // Get the SF (max value of the vector / max value of e2m1).
+  // maximum value of e2m1 = 6.0.
+  // TODO: use half as compute data type.
+  float SFValue = SFScaleVal * (vecMax * reciprocal_approximate_ftz(6.0f));
+  // 8 bits representation of the SF.
+  uint8_t fp8SFVal;
+  // Write the SF to global memory (STG.8).
+  if constexpr (UE8M0_SF) {
+    // Extract the 8 exponent bits from float32.
+    // float 32bits = 1 sign bit + 8 exponent bits + 23 mantissa bits.
+    uint32_t tmp = reinterpret_cast<uint32_t&>(SFValue) >> 23;
+    fp8SFVal = tmp & 0xff;
+    // Convert back to fp32.
+    reinterpret_cast<uint32_t&>(SFValue) = tmp << 23;
+  } else {
+    // Here SFValue is always positive, so E4M3 is the same as UE4M3.
+    __nv_fp8_e4m3 tmp = __nv_fp8_e4m3(SFValue);
+    reinterpret_cast<__nv_fp8_e4m3&>(fp8SFVal) = tmp;
+    // Convert back to fp32.
+    SFValue = float(tmp);
+  }
+  // Get the output scale.
+  // Recipe: final_scale = reciprocal(fp32(fp8(SFValue * SFScaleVal))) *
+  //                       reciprocal(SFScaleVal))
+  float outputScale =
+      SFValue != 0 ? reciprocal_approximate_ftz(
+                         SFValue * reciprocal_approximate_ftz(SFScaleVal))
+                   : 0.0f;
+
+  if (SFout) {
+    // Write the SF to global memory (STG.8).
+    *SFout = fp8SFVal;
+  }
+
+  // Convert the input to float.
+  float2 fp2Vals[CVT_FP4_ELTS_PER_THREAD / 2];
+
+  #pragma unroll
+  for (int i = 0; i < CVT_FP4_ELTS_PER_THREAD / 2; i++) {
+    if constexpr (std::is_same_v<Type, c10::Half>) {
+      fp2Vals[i] = __half22float2(out_silu.elts[i]);
+    } else {
+      fp2Vals[i] = __bfloat1622float2(out_silu.elts[i]);
+    }
+    fp2Vals[i].x *= outputScale;
+    fp2Vals[i].y *= outputScale;
+  }
+
+  // Convert to e2m1 values.
+  uint32_t e2m1Vec = fp32_vec_to_e2m1(fp2Vals);
+
+  // Write the e2m1 values to global memory.
+  return e2m1Vec;
+#else
+  return 0;
+#endif
+}
+
+// Use UE4M3 by default.
+template <class Type, bool UE8M0_SF = false>
+__global__ void
+#if defined(__CUDA_ARCH__) && (__CUDA_ARCH__ >= 1000)
+__launch_bounds__(1024, 4) silu_and_cvt_fp16_to_fp4(
+#else
+silu_and_cvt_fp16_to_fp4(
+#endif
+    int32_t numRows, int32_t numCols, Type const* in, float const* SFScale,
+    uint32_t* out, uint32_t* SFout) {
+#if defined(__CUDA_ARCH__) && (__CUDA_ARCH__ >= 1000)
+  using PackedVec = PackedVec<Type>;
+  static constexpr int CVT_FP4_NUM_THREADS_PER_SF =
+      (CVT_FP4_SF_VEC_SIZE / CVT_FP4_ELTS_PER_THREAD);
+  static_assert(sizeof(PackedVec) == sizeof(Type) * CVT_FP4_ELTS_PER_THREAD,
+                "Vec size is not matched.");
+
+  // Get the global scaling factor, which will be applied to the SF.
+  // Note SFScale is the same as next GEMM's alpha, which is
+  // (448.f / (Alpha_A / 6.f)).
+  float const SFScaleVal = SFScale == nullptr ? 1.0f : SFScale[0];
+
+  // Input tensor row/col loops.
+  for (int rowIdx = blockIdx.x; rowIdx < numRows; rowIdx += gridDim.x) {
+    for (int colIdx = threadIdx.x; colIdx < numCols / CVT_FP4_ELTS_PER_THREAD;
+         colIdx += blockDim.x) {
+      int64_t inOffset =
+          rowIdx * (numCols * 2 / CVT_FP4_ELTS_PER_THREAD) + colIdx;
+      int64_t inOffset2 = rowIdx * (numCols * 2 / CVT_FP4_ELTS_PER_THREAD) +
+                          numCols / CVT_FP4_ELTS_PER_THREAD + colIdx;
+      PackedVec in_vec = reinterpret_cast<PackedVec const*>(in)[inOffset];
+      PackedVec in_vec2 = reinterpret_cast<PackedVec const*>(in)[inOffset2];
+
+      // Get the output tensor offset.
+      // Same as inOffset because 8 elements are packed into one uint32_t.
+      int64_t outOffset = rowIdx * (numCols / CVT_FP4_ELTS_PER_THREAD) + colIdx;
+      ;
+      auto& out_pos = out[outOffset];
+
+      auto sf_out =
+          cvt_quant_to_fp4_get_sf_out_offset<uint32_t,
+                                             CVT_FP4_NUM_THREADS_PER_SF>(
+              rowIdx, colIdx, numCols, SFout);
+
+      out_pos = silu_and_cvt_warp_fp16_to_fp4<Type, UE8M0_SF>(
+          in_vec, in_vec2, SFScaleVal, sf_out);
+    }
+  }
+#endif
+}
+
+}  // namespace vllm
+
+void silu_and_mul_nvfp4_quant(torch::Tensor& output,  // [..., d]
+                              torch::Tensor& output_sf,
+                              torch::Tensor& input,  // [..., 2 * d]
+                              torch::Tensor& input_sf) {
+  TORCH_CHECK(input.dtype() == torch::kFloat16 ||
+              input.dtype() == torch::kBFloat16);
+  int32_t m = input.size(0);
+  int32_t n = input.size(1) / 2;
+  TORCH_CHECK(n % 16 == 0, "The N dimension must be multiple of 16.");
+  int multiProcessorCount =
+      get_device_attribute(cudaDevAttrMultiProcessorCount, -1);
+  auto input_sf_ptr = static_cast<float const*>(input_sf.data_ptr());
+  auto sf_out = static_cast<int32_t*>(output_sf.data_ptr());
+  auto output_ptr = static_cast<int64_t*>(output.data_ptr());
+  const at::cuda::OptionalCUDAGuard device_guard(device_of(input));
+  auto stream = at::cuda::getCurrentCUDAStream(input.get_device());
+  dim3 block(std::min(int(n / ELTS_PER_THREAD), 1024));
+  int const numBlocksPerSM = 2048 / block.x;
+  dim3 grid(std::min(int(m), multiProcessorCount * numBlocksPerSM));
+  VLLM_DISPATCH_HALF_TYPES(
+      input.scalar_type(), "act_and_mul_quant_kernel", [&] {
+        auto input_ptr = reinterpret_cast<scalar_t const*>(input.data_ptr());
+        VLLM_DISPATCH_BYTE_TYPES(
+            output.scalar_type(), "fused_act_and_mul_quant_kernel_nvfp4_type",
+            [&] {
+              vllm::silu_and_cvt_fp16_to_fp4<scalar_t>
+                  <<<grid, block, 0, stream>>>(
+                      m, n, input_ptr, input_sf_ptr,
+                      reinterpret_cast<uint32_t*>(output_ptr),
+                      reinterpret_cast<uint32_t*>(sf_out));
+            });
+      });
+}

csrc/torch_bindings.cpp

@@ -115,6 +115,14 @@ TORCH_LIBRARY_EXPAND(TORCH_EXTENSION_NAME, ops) {
       "silu_and_mul_quant(Tensor! result, Tensor input, Tensor scale) -> ()");
   ops.impl("silu_and_mul_quant", torch::kCUDA, &silu_and_mul_quant);
 
+#if (defined(ENABLE_NVFP4_SM100) && ENABLE_NVFP4_SM100) || \
+    (defined(ENABLE_NVFP4_SM120) && ENABLE_NVFP4_SM120)
+  ops.def(
+      "silu_and_mul_nvfp4_quant(Tensor! result, Tensor! result_block_scale, "
+      "Tensor input, Tensor input_global_scale) -> ()");
+  ops.impl("silu_and_mul_nvfp4_quant", torch::kCUDA, &silu_and_mul_nvfp4_quant);
+#endif
+
   ops.def("mul_and_silu(Tensor! out, Tensor input) -> ()");
   ops.impl("mul_and_silu", torch::kCUDA, &mul_and_silu);
 

docs/configuration/optimization.md

@@ -175,7 +175,7 @@ Regardless, you need to set `mm_encoder_tp_mode="data"` in engine arguments to u
 Known supported models:
 
 - Llama4 (<gh-pr:18368>)
-- MiniCPM-V-4 (<gh-pr:23327>)
+- MiniCPM-V-2.5 or above (<gh-pr:23327>, <gh-pr:23948>)
 - Qwen2.5-VL (<gh-pr:22742>)
 - Step3 (<gh-pr:22697>)
 

docs/contributing/model/basic.md

@@ -121,3 +121,31 @@ To support a model with interleaving sliding windows, we need to take care of th
 - In the modeling code, parse the correct sliding window value for every layer, and pass it to the attention layer's `per_layer_sliding_window` argument. For reference, check [this line](https://github.com/vllm-project/vllm/blob/996357e4808ca5eab97d4c97c7d25b3073f46aab/vllm/model_executor/models/llama.py#L171).
 
 With these two steps, interleave sliding windows should work with the model.
+
+### How to support models that use Mamba?
+
+We consider 3 different scenarios:
+
+1. Models that use Mamba layers (either Mamba-1 or Mamba-2) but do not use attention layers.
+2. Models that combine Mamba layers (either Mamba-1 or Mamba-2) together with attention layers.
+3. Models that combine Mamba-like mechanisms (e.g., Linear Attention, ShortConv) together with attention layers.
+
+For case (1), we recommend looking at the implementation of [`MambaForCausalLM`](gh-file:vllm/model_executor/models/mamba.py) (for Mamba-1) or [`Mamba2ForCausalLM`](gh-file:vllm/model_executor/models/mamba2.py) (for Mamba-2) as a reference.
+The model should inherit protocol `IsAttentionFree` and also implement class methods `get_mamba_state_dtype_from_config` and `get_mamba_state_shape_from_config` to calculate the state shapes and data types from the config.
+For the mamba layers themselves, please use the [`MambaMixer`](gh-file:vllm/model_executor/layers/mamba/mamba_mixer.py) (for Mamba-1) or [`MambaMixer2`](gh-file:vllm/model_executor/layers/mamba/mamba_mixer2.py) (for Mamba-2) classes.
+Please *do not* use the `MambaCacheManager` (deprecated in V1) or replicate any of the V0-specific code paths in the existing model implementations.
+V0-only classes and code will be removed in the very near future.
+The model should also be added to the `MODELS_CONFIG_MAP` dictionary in <gh-file:vllm/model_executor/models/config.py> to ensure that the runtime defaults are optimized.
+
+For case (2), we recommend using as a reference the implementation of [`JambaForCausalLM`](gh-file:vllm/model_executor/models/jamba.py) (for an example of a model that uses Mamba-1 and attention together) or [`BambaForCausalLM`](gh-file:vllm/model_executor/models/bamba.py) (for an example of a model that uses Mamba-2 and attention together).
+These models should follow the same instructions as case (1), but they should inherit protocol `IsHybrid` (instead of `IsAttentionFree`) and it is *not* necessary to add them to the `MODELS_CONFIG_MAP` (their runtime defaults will be inferred from the protocol).
+
+For case (3), we recommend looking at the implementation of [`MiniMaxText01ForCausalLM`](gh-file:vllm/model_executor/models/minimax_text_01.py) or [`Lfm2ForCausalLM`](gh-file:vllm/model_executor/models/lfm2.py) as a reference, which use custom "mamba-like" layers `MiniMaxText01LinearAttention` and `ShortConv` respectively.
+Please follow the same guidelines as case (2) for implementing these models.
+We use "mamba-like" to refer to layers that posses a state that is updated in-place, rather than being appended-to (like KV cache for attention).
+For implementing new custom mamba-like layers, one should inherit from `MambaBase` and implement the methods `get_state_dtype`, `get_state_shape` to calculate the data types and state shapes at runtime, as well as `mamba_type` and `get_attn_backend`.
+It is also necessary to implement the "attention meta-data" class which handles the meta-data that is common across all layers.
+Please see [`LinearAttentionMetadata`](gh-file:vllm/v1/attention/backends/linear_attn.py) or [`ShortConvAttentionMetadata`](gh-file:v1/attention/backends/short_conv_attn.py) for examples of this.
+Finally, if one wants to support torch compile and CUDA graphs, it necessary to wrap the call to the mamba-like layer inside a custom op and register it.
+Please see the calls to `direct_register_custom_op` in <gh-file:vllm/model_executor/models/minimax_text_01.py> or <gh-file:vllm/model_executor/layers/mamba/short_conv.py> for examples of this.
+The new custom op should then be added to the list `_attention_ops` in <gh-file:vllm/config/compilation.py> to ensure that piecewise CUDA graphs works as intended.

docs/features/multimodal_inputs.md

@@ -13,6 +13,41 @@ To input multi-modal data, follow this schema in [vllm.inputs.PromptType][]:
 - `prompt`: The prompt should follow the format that is documented on HuggingFace.
 - `multi_modal_data`: This is a dictionary that follows the schema defined in [vllm.multimodal.inputs.MultiModalDataDict][].
 
+### Stable UUIDs for Caching (multi_modal_uuids)
+
+When using multi-modal inputs, vLLM normally hashes each media item by content to enable caching across requests. You can optionally pass `multi_modal_uuids` to provide your own stable IDs for each item so caching can reuse work across requests without rehashing the raw content.
+
+??? code
+
+    ```python
+    from vllm import LLM
+    from PIL import Image
+
+    # Qwen2.5-VL example with two images
+    llm = LLM(model="Qwen/Qwen2.5-VL-3B-Instruct")
+
+    prompt = "USER: <image><image>\nDescribe the differences.\nASSISTANT:"
+    img_a = Image.open("/path/to/a.jpg")
+    img_b = Image.open("/path/to/b.jpg")
+
+    outputs = llm.generate({
+        "prompt": prompt,
+        "multi_modal_data": {"image": [img_a, img_b]},
+        # Provide stable IDs for caching.
+        # Requirements (matched by this example):
+        #  - Include every modality present in multi_modal_data.
+        #  - For lists, provide the same number of entries.
+        #  - Use None to fall back to content hashing for that item.
+        "multi_modal_uuids": {"image": ["sku-1234-a", None]},
+    })
+
+    for o in outputs:
+        print(o.outputs[0].text)
+    ```
+
+!!! warning
+    If both multimodal processor caching and prefix caching are disabled, user-provided `multi_modal_uuids` are ignored.
+
 ### Image Inputs
 
 You can pass a single image to the `'image'` field of the multi-modal dictionary, as shown in the following examples:

docs/getting_started/installation/cpu.md

@@ -96,6 +96,7 @@ Currently, there are no pre-built CPU wheels.
 - `VLLM_CPU_KVCACHE_SPACE`: specify the KV Cache size (e.g, `VLLM_CPU_KVCACHE_SPACE=40` means 40 GiB space for KV cache), larger setting will allow vLLM running more requests in parallel. This parameter should be set based on the hardware configuration and memory management pattern of users. Default value is `0`.
 - `VLLM_CPU_OMP_THREADS_BIND`: specify the CPU cores dedicated to the OpenMP threads, can be set as CPU id lists or `auto` (by default). For example, `VLLM_CPU_OMP_THREADS_BIND=0-31` means there will be 32 OpenMP threads bound on 0-31 CPU cores. `VLLM_CPU_OMP_THREADS_BIND=0-31|32-63` means there will be 2 tensor parallel processes, 32 OpenMP threads of rank0 are bound on 0-31 CPU cores, and the OpenMP threads of rank1 are bound on 32-63 CPU cores. By setting to `auto`, the OpenMP threads of each rank are bound to the CPU cores in each NUMA node respectively.
 - `VLLM_CPU_NUM_OF_RESERVED_CPU`: specify the number of CPU cores which are not dedicated to the OpenMP threads for each rank. The variable only takes effect when VLLM_CPU_OMP_THREADS_BIND is set to `auto`. Default value is `None`. If the value is not set and use `auto` thread binding, no CPU will be reserved for `world_size == 1`, 1 CPU per rank will be reserved for `world_size > 1`.
+- `CPU_VISIBLE_MEMORY_NODES`: specify visible NUMA memory nodes for vLLM CPU workers, similar to ```CUDA_VISIBLE_DEVICES```. The variable only takes effect when VLLM_CPU_OMP_THREADS_BIND is set to `auto`. The variable provides more control for the auto thread-binding feature, such as masking nodes and changing nodes binding sequence.
 - `VLLM_CPU_MOE_PREPACK` (x86 only): whether to use prepack for MoE layer. This will be passed to `ipex.llm.modules.GatedMLPMOE`. Default is `1` (True). On unsupported CPUs, you might need to set this to `0` (False).
 - `VLLM_CPU_SGL_KERNEL` (x86 only, Experimental): whether to use small-batch optimized kernels for linear layer and MoE layer, especially for low-latency requirements like online serving. The kernels require AMX instruction set, BFloat16 weight type and weight shapes divisible by 32. Default is `0` (False).
 
@@ -179,7 +180,7 @@ Inference batch size is an important parameter for the performance. Larger batch
     - Offline Inference: `256 * world_size`
     - Online Serving: `128 * world_size`
 
-vLLM CPU supports tensor parallel (TP) and pipeline parallel (PP) to leverage multiple CPU sockets and memory nodes. For more details of tuning TP and PP, please refer to [Optimization and Tuning](../../configuration/optimization.md). For vLLM CPU, it is recommend to use TP and PP together if there are enough CPU sockets and memory nodes.
+vLLM CPU supports data parallel (DP), tensor parallel (TP) and pipeline parallel (PP) to leverage multiple CPU sockets and memory nodes. For more details of tuning DP, TP and PP, please refer to [Optimization and Tuning](../../configuration/optimization.md). For vLLM CPU, it is recommend to use DP, TP and PP together if there are enough CPU sockets and memory nodes.
 
 ### Which quantization configs does vLLM CPU support?
 

docs/getting_started/installation/cpu/x86.inc.md

@@ -43,7 +43,7 @@ docker build -f docker/Dockerfile.cpu \
 
 # Launching OpenAI server
 docker run --rm \
-            --privileged=true \
+            --security-opt seccomp=unconfined \
             --shm-size=4g \
             -p 8000:8000 \
             -e VLLM_CPU_KVCACHE_SPACE=<KV cache space> \

docs/models/supported_models.md

@@ -335,9 +335,9 @@ th {
 | `CohereForCausalLM`, `Cohere2ForCausalLM` | Command-R, Command-A | `CohereLabs/c4ai-command-r-v01`, `CohereLabs/c4ai-command-r7b-12-2024`, `CohereLabs/c4ai-command-a-03-2025`, `CohereLabs/command-a-reasoning-08-2025`, etc. | ✅︎ | ✅︎ | ✅︎ |
 | `DbrxForCausalLM` | DBRX | `databricks/dbrx-base`, `databricks/dbrx-instruct`, etc. | | ✅︎ | ✅︎ |
 | `DeciLMForCausalLM` | DeciLM | `nvidia/Llama-3_3-Nemotron-Super-49B-v1`, etc. | ✅︎ | ✅︎ | ✅︎ |
-| `DeepseekForCausalLM` | DeepSeek | `deepseek-ai/deepseek-llm-67b-base`, `deepseek-ai/deepseek-llm-7b-chat`, etc. | | ✅︎ | ✅︎ |
-| `DeepseekV2ForCausalLM` | DeepSeek-V2 | `deepseek-ai/DeepSeek-V2`, `deepseek-ai/DeepSeek-V2-Chat`, etc. | | ✅︎ | ✅︎ |
-| `DeepseekV3ForCausalLM` | DeepSeek-V3 | `deepseek-ai/DeepSeek-V3-Base`, `deepseek-ai/DeepSeek-V3`, etc. | | ✅︎ | ✅︎ |
+| `DeepseekForCausalLM` | DeepSeek | `deepseek-ai/deepseek-llm-67b-base`, `deepseek-ai/deepseek-llm-7b-chat`, etc. | ✅︎ | ✅︎ | ✅︎ |
+| `DeepseekV2ForCausalLM` | DeepSeek-V2 | `deepseek-ai/DeepSeek-V2`, `deepseek-ai/DeepSeek-V2-Chat`, etc. | ✅︎ | ✅︎ | ✅︎ |
+| `DeepseekV3ForCausalLM` | DeepSeek-V3 | `deepseek-ai/DeepSeek-V3`, `deepseek-ai/DeepSeek-R1`, `deepseek-ai/DeepSeek-V3.1`, etc. | ✅︎ | ✅︎ | ✅︎ |
 | `Dots1ForCausalLM` | dots.llm1 | `rednote-hilab/dots.llm1.base`, `rednote-hilab/dots.llm1.inst`, etc. | | ✅︎ | ✅︎ |
 | `Ernie4_5ForCausalLM` | Ernie4.5 | `baidu/ERNIE-4.5-0.3B-PT`, etc. | ✅︎ | ✅︎ | ✅︎ |
 | `Ernie4_5_MoeForCausalLM` | Ernie4.5MoE | `baidu/ERNIE-4.5-21B-A3B-PT`, `baidu/ERNIE-4.5-300B-A47B-PT`, etc. |✅︎| ✅︎ | ✅︎ |

docs/usage/v1_guide.md

@@ -107,16 +107,14 @@ to enable simultaneous generation and embedding using the same engine instance i
 #### Mamba Models
 
 Models using selective state-space mechanisms instead of standard transformer attention are supported.
-Models that use Mamba-2 and Mamba-1 layers (e.g., `Mamba2ForCausalLM`, `MambaForCausalLM`) are supported.
-Please note that prefix caching is not yet supported for these models.
+Models that use Mamba-2 and Mamba-1 layers (e.g., `Mamba2ForCausalLM`, `MambaForCausalLM`,`FalconMambaForCausalLM`) are supported.
 
-Models that combine Mamba-2 and Mamba-1 layers with standard attention layers are also supported (e.g., `BambaForCausalLM`,
+Hybrid models that combine Mamba-2 and Mamba-1 layers with standard attention layers are also supported (e.g., `BambaForCausalLM`,
 `Zamba2ForCausalLM`, `NemotronHForCausalLM`, `FalconH1ForCausalLM` and `GraniteMoeHybridForCausalLM`, `JambaForCausalLM`).
-Please note that prefix caching is not yet supported for these models.
 
-Hybrid models with mechanisms different to Mamba are also supported (e.g, `MiniMaxText01ForCausalLM`, `MiniMaxM1ForCausalLM`).
-Please note that prefix caching is not yet supported for these models.
-It is also necessary to enforce eager mode for these models in V1.
+Hybrid models with mechanisms different to Mamba are also supported (e.g, `MiniMaxText01ForCausalLM`, `MiniMaxM1ForCausalLM`, `Lfm2ForCausalLM`).
+
+Please note that prefix caching is not yet supported for any of the above models.
 
 #### Encoder-Decoder Models
 

pyproject.toml

@@ -6,7 +6,7 @@ requires = [
     "packaging>=24.2",
     "setuptools>=77.0.3,<80.0.0",
     "setuptools-scm>=8.0",
-    "torch == 2.7.1",
+    "torch == 2.8.0",
     "wheel",
     "jinja2",
 ]

requirements/build.txt

@@ -4,7 +4,8 @@ ninja
 packaging>=24.2
 setuptools>=77.0.3,<80.0.0
 setuptools-scm>=8
-torch==2.7.1
+torch==2.8.0
 wheel
 jinja2>=3.1.6
 regex
+build

requirements/cpu.txt

@@ -9,17 +9,16 @@ packaging>=24.2
 setuptools>=77.0.3,<80.0.0
 --extra-index-url https://download.pytorch.org/whl/cpu
 torch==2.6.0+cpu; platform_machine == "x86_64" # torch>2.6.0+cpu has performance regression on x86 platform, see https://github.com/pytorch/pytorch/pull/151218
-torch==2.7.0; platform_system == "Darwin"
-torch==2.7.0; platform_machine == "ppc64le"
-torch==2.6.0; platform_machine == "aarch64" # for arm64 CPUs, torch 2.7.0 has a issue: https://github.com/vllm-project/vllm/issues/17960
+torch==2.8.0; platform_system == "Darwin"
+torch==2.8.0; platform_machine == "ppc64le" or platform_machine == "aarch64"
 
 # required for the image processor of minicpm-o-2_6, this must be updated alongside torch
 torchaudio; platform_machine != "ppc64le" and platform_machine != "s390x"
-torchaudio==2.7.0; platform_machine == "ppc64le"
+torchaudio==2.8.0; platform_machine == "ppc64le"
 
 # required for the image processor of phi3v, this must be updated alongside torch
 torchvision; platform_machine != "ppc64le" and platform_machine != "s390x"
-torchvision==0.22.0; platform_machine == "ppc64le"
+torchvision==0.23.0; platform_machine == "ppc64le"
 datasets # for benchmark scripts
 
 # Intel Extension for PyTorch, only for x86_64 CPUs

requirements/cuda.txt

@@ -6,9 +6,9 @@ numba == 0.61.2; python_version > '3.9'
 
 # Dependencies for NVIDIA GPUs
 ray[cgraph]>=2.48.0 # Ray Compiled Graph, required for pipeline parallelism in V1.
-torch==2.7.1
-torchaudio==2.7.1
+torch==2.8.0
+torchaudio==2.8.0
 # These must be updated alongside torch
-torchvision==0.22.1 # Required for phi3v processor. See https://github.com/pytorch/vision?tab=readme-ov-file#installation for corresponding version
-# https://github.com/facebookresearch/xformers/releases/tag/v0.0.31
-xformers==0.0.31; platform_system == 'Linux' and platform_machine == 'x86_64'  # Requires PyTorch >= 2.7
+torchvision==0.23.0 # Required for phi3v processor. See https://github.com/pytorch/vision?tab=readme-ov-file#installation for corresponding version
+# https://github.com/facebookresearch/xformers/releases/tag/v0.0.32.post1
+xformers==0.0.32.post1; platform_system == 'Linux' and platform_machine == 'x86_64'  # Requires PyTorch >= 2.8

requirements/rocm-build.txt

@@ -1,10 +1,10 @@
 # Common dependencies
 -r common.txt
 
---extra-index-url https://download.pytorch.org/whl/rocm6.2.4
-torch==2.7.0
-torchvision==0.22.0
-torchaudio==2.7.0
+--extra-index-url https://download.pytorch.org/whl/rocm6.3
+torch==2.8.0
+torchvision==0.23.0
+torchaudio==2.8.0
 
 triton==3.3.0
 cmake>=3.26.1,<4

requirements/test.in

@@ -22,9 +22,9 @@ sentence-transformers # required for embedding tests
 soundfile # required for audio tests
 jiwer # required for audio tests
 timm >=1.0.17 # required for internvl and gemma3n-mm test
-torch==2.7.1
-torchaudio==2.7.1
-torchvision==0.22.1
+torch==2.8.0
+torchaudio==2.8.0
+torchvision==0.23.0
 transformers_stream_generator # required for qwen-vl test
 matplotlib # required for qwen-vl test
 mistral_common[image,audio] >= 1.8.2 # required for voxtral test

requirements/test.txt

@@ -541,42 +541,42 @@ numpy==1.26.4
     #   tritonclient
     #   vocos
     #   xarray
-nvidia-cublas-cu12==12.8.3.14
+nvidia-cublas-cu12==12.8.4.1
     # via
     #   nvidia-cudnn-cu12
     #   nvidia-cusolver-cu12
     #   torch
-nvidia-cuda-cupti-cu12==12.8.57
+nvidia-cuda-cupti-cu12==12.8.90
     # via torch
-nvidia-cuda-nvrtc-cu12==12.8.61
+nvidia-cuda-nvrtc-cu12==12.8.93
     # via torch
-nvidia-cuda-runtime-cu12==12.8.57
+nvidia-cuda-runtime-cu12==12.8.90
     # via torch
-nvidia-cudnn-cu12==9.7.1.26
+nvidia-cudnn-cu12==9.10.2.21
     # via torch
-nvidia-cufft-cu12==11.3.3.41
+nvidia-cufft-cu12==11.3.3.83
     # via torch
-nvidia-cufile-cu12==1.13.0.11
+nvidia-cufile-cu12==1.13.1.3
     # via torch
-nvidia-curand-cu12==10.3.9.55
+nvidia-curand-cu12==10.3.9.90
     # via torch
-nvidia-cusolver-cu12==11.7.2.55
+nvidia-cusolver-cu12==11.7.3.90
     # via torch
-nvidia-cusparse-cu12==12.5.7.53
+nvidia-cusparse-cu12==12.5.8.93
     # via
     #   nvidia-cusolver-cu12
     #   torch
-nvidia-cusparselt-cu12==0.6.3
+nvidia-cusparselt-cu12==0.7.1
     # via torch
-nvidia-nccl-cu12==2.26.2
+nvidia-nccl-cu12==2.27.3
     # via torch
-nvidia-nvjitlink-cu12==12.8.61
+nvidia-nvjitlink-cu12==12.8.93
     # via
     #   nvidia-cufft-cu12
     #   nvidia-cusolver-cu12
     #   nvidia-cusparse-cu12
     #   torch
-nvidia-nvtx-cu12==12.8.55
+nvidia-nvtx-cu12==12.8.90
     # via torch
 omegaconf==2.3.0
     # via
@@ -1069,7 +1069,7 @@ tomli==2.2.1
     # via schemathesis
 tomli-w==1.2.0
     # via schemathesis
-torch==2.7.1+cu128
+torch==2.8.0+cu128
     # via
     #   -r requirements/test.in
     #   accelerate
@@ -1098,7 +1098,7 @@ torch==2.7.1+cu128
     #   torchvision
     #   vector-quantize-pytorch
     #   vocos
-torchaudio==2.7.1+cu128
+torchaudio==2.8.0+cu128
     # via
     #   -r requirements/test.in
     #   encodec
@@ -1111,7 +1111,7 @@ torchmetrics==1.7.4
     #   pytorch-lightning
     #   terratorch
     #   torchgeo
-torchvision==0.22.1+cu128
+torchvision==0.23.0+cu128
     # via
     #   -r requirements/test.in
     #   lightly
@@ -1152,7 +1152,7 @@ transformers==4.55.2
     #   transformers-stream-generator
 transformers-stream-generator==0.0.5
     # via -r requirements/test.in
-triton==3.3.1
+triton==3.4.0
     # via torch
 tritonclient==2.51.0
     # via

tests/compile/test_silu_mul_quant_fusion.py

@@ -4,32 +4,41 @@ import pytest
 import torch
 
 import vllm.envs as envs
-from vllm.compilation.activation_quant_fusion import ActivationQuantFusionPass
-from vllm.compilation.fx_utils import find_auto_fn, find_auto_fn_maybe
+from vllm._custom_ops import cutlass_scaled_fp4_mm, scaled_fp4_quant
+# yapf conflicts with isort for this block
+# yapf: disable
+from vllm.compilation.activation_quant_fusion import (
+    FUSED_OPS, SILU_MUL_OP, ActivationQuantFusionPass)
+# yapf: enable
+from vllm.compilation.fusion import QUANT_OPS
 from vllm.compilation.noop_elimination import NoOpEliminationPass
 from vllm.config import CompilationConfig, PassConfig, VllmConfig
 from vllm.model_executor.layers.activation import SiluAndMul
 from vllm.model_executor.layers.quantization.utils.quant_utils import (
-    GroupShape)
+    GroupShape, kFp8StaticTensorSym, kNvfp4Quant)
 from vllm.model_executor.layers.quantization.utils.w8a8_utils import (
     Fp8LinearOp)
 from vllm.platforms import current_platform
 
 from .backend import TestBackend
 
+FP8_DTYPE = current_platform.fp8_dtype()
+FP4_DTYPE = torch.uint8
 
-class TestModel(torch.nn.Module):
 
-    def __init__(self, hidden_size: int, force_fp8_e4m3fnuz: bool, *args,
-                 **kwargs):
-        super().__init__(*args, **kwargs)
+def is_nvfp4_supported():
+    return current_platform.has_device_capability(100)
+
+
+class TestSiluMulFp8QuantModel(torch.nn.Module):
+
+    def __init__(self, hidden_size: int, force_fp8_e4m3fnuz: bool, **kwargs):
+        super().__init__()
         self.silu_and_mul = SiluAndMul()
         self.wscale = torch.rand(1, dtype=torch.float32)
         self.scale = torch.rand(1, dtype=torch.float32)
 
-        self.w = (torch.rand(
-            hidden_size,
-            hidden_size).to(dtype=current_platform.fp8_dtype()).t())
+        self.w = torch.rand(hidden_size, hidden_size).to(dtype=FP8_DTYPE).t()
 
         self.fp8_linear = Fp8LinearOp(
             force_fp8_e4m3fnuz=force_fp8_e4m3fnuz,
@@ -45,14 +54,56 @@ class TestModel(torch.nn.Module):
                                    input_scale=self.wscale)
         return x2
 
+    def ops_in_model_before(self):
+        return [SILU_MUL_OP, QUANT_OPS[kFp8StaticTensorSym]]
 
-@pytest.mark.parametrize("num_tokens", [256])
-@pytest.mark.parametrize("hidden_size", [64])
+    def ops_in_model_after(self):
+        return [FUSED_OPS[kFp8StaticTensorSym]]
+
+
+class TestSiluMulNvfp4QuantModel(torch.nn.Module):
+
+    def __init__(self, hidden_size: int, **kwargs):
+        super().__init__()
+        self.silu_and_mul = SiluAndMul()
+        self.w = torch.randint(256, (hidden_size, hidden_size // 2),
+                               dtype=FP4_DTYPE)
+        self.wscale = torch.randn(hidden_size,
+                                  hidden_size // 16).to(dtype=FP8_DTYPE)
+        self.wscale2 = torch.rand(1, dtype=torch.float32)
+        self.scale = torch.rand(1, dtype=torch.float32)
+
+    def forward(self, x):
+        y = self.silu_and_mul(x)
+        y_quant, y_block_scale = scaled_fp4_quant(y, 1 / self.scale)
+        out = cutlass_scaled_fp4_mm(a=y_quant,
+                                    b=self.w,
+                                    block_scale_a=y_block_scale,
+                                    block_scale_b=self.wscale,
+                                    alpha=self.scale * self.wscale2,
+                                    out_dtype=y.dtype)
+        return out
+
+    def ops_in_model_before(self):
+        return [SILU_MUL_OP, QUANT_OPS[kNvfp4Quant]]
+
+    def ops_in_model_after(self):
+        return [FUSED_OPS[kNvfp4Quant]]
+
+
+@pytest.mark.parametrize("num_tokens", [64])
+@pytest.mark.parametrize("hidden_size", [128])
+@pytest.mark.parametrize(
+    "model_class", [TestSiluMulFp8QuantModel, TestSiluMulNvfp4QuantModel]
+    if is_nvfp4_supported() else [TestSiluMulFp8QuantModel])
 @pytest.mark.parametrize("force_fp8_e4m3fnuz", [True, False])
 @pytest.mark.skipif(envs.VLLM_TARGET_DEVICE not in ["cuda", "rocm"],
                     reason="Only test on CUDA and ROCm")
-def test_fusion_silu_and_mul_quant(num_tokens, hidden_size,
+def test_fusion_silu_and_mul_quant(num_tokens, hidden_size, model_class,
                                    force_fp8_e4m3fnuz):
+    if model_class == TestSiluMulNvfp4QuantModel and force_fp8_e4m3fnuz:
+        pytest.skip("Duplicate tests for NVFP4")
+
     torch.set_default_device("cuda")
     torch.set_default_dtype(torch.float16)
 
@@ -63,7 +114,8 @@ def test_fusion_silu_and_mul_quant(num_tokens, hidden_size,
     fusion_pass = ActivationQuantFusionPass(config)
 
     backend = TestBackend(NoOpEliminationPass(config), fusion_pass)
-    model = TestModel(hidden_size, force_fp8_e4m3fnuz)
+    model = model_class(hidden_size=hidden_size,
+                        force_fp8_e4m3fnuz=force_fp8_e4m3fnuz)
 
     # First dimension dynamic
     x = torch.rand(num_tokens, hidden_size * 2)
@@ -80,17 +132,8 @@ def test_fusion_silu_and_mul_quant(num_tokens, hidden_size,
                                atol=1e-3,
                                rtol=1e-3)
 
-    # Check substitution worked
-    pre_nodes = backend.graph_pre_pass.nodes
-    post_nodes = backend.graph_post_pass.nodes
+    # In pre-nodes, quant op should be present and fused kernels should not
+    backend.check_before_ops(model.ops_in_model_before())
 
-    silu_and_mul_quant = torch.ops._C.silu_and_mul_quant.default
-    fp8_quant = torch.ops._C.static_scaled_fp8_quant.default
-
-    # In pre-nodes, fp8 quant should be present and fused kernels should not
-    assert find_auto_fn_maybe(pre_nodes, silu_and_mul_quant) is None
-    find_auto_fn(pre_nodes, fp8_quant)
-
-    # In post-nodes, fused kernels should be present and fp8 quant should not
-    find_auto_fn(post_nodes, silu_and_mul_quant)
-    assert find_auto_fn_maybe(post_nodes, fp8_quant) is None
+    # In post-nodes, fused kernels should be present and quant op should not
+    backend.check_after_ops(model.ops_in_model_after())

tests/distributed/test_pipeline_parallel.py

@@ -118,6 +118,8 @@ class PPTestSettings:
         multi_node_only: bool = False,
         load_format: Optional[str] = None,
     ):
+        vllm_major_versions = ["1"] if runner == "pooling" else ["0"]
+
         return PPTestSettings(
             parallel_setups=[
                 ParallelSetup(tp_size=tp_base,
@@ -126,7 +128,7 @@ class PPTestSettings:
                               chunked_prefill=False),
             ],
             distributed_backends=["mp"],
-            vllm_major_versions=["0"],
+            vllm_major_versions=vllm_major_versions,
             runner=runner,
             test_options=PPTestOptions(multi_node_only=multi_node_only,
                                        load_format=load_format),
@@ -213,7 +215,9 @@ TEXT_GENERATION_MODELS = {
 EMBEDDING_MODELS = {  # type: ignore[var-annotated]
     # [Text-only]
     "intfloat/e5-mistral-7b-instruct": PPTestSettings.fast(runner="pooling"),
-    "BAAI/bge-multilingual-gemma2": PPTestSettings.fast(runner="pooling"),
+    # TODO: re-enable when https://github.com/vllm-project/vllm/issues/23883
+    # is fixed
+    #"BAAI/bge-multilingual-gemma2": PPTestSettings.fast(runner="pooling"),
     "Qwen/Qwen2.5-Math-RM-72B": PPTestSettings.fast(
         load_format="dummy", runner="pooling"
     ),

tests/distributed/test_sequence_parallel.py

@@ -292,7 +292,7 @@ SP_TEST_MODELS = [
     # TODO support other models
     # [LANGUAGE GENERATION]
     "meta-llama/Llama-3.2-1B-Instruct",
-    "RedHatAI/Meta-Llama-3.1-8B-Instruct-FP8"
+    "RedHatAI/Meta-Llama-3.1-8B-Instruct-FP8",
 ]
 
 

tests/entrypoints/llm/test_classify.py

@@ -16,14 +16,6 @@ MODEL_NAME = "jason9693/Qwen2.5-1.5B-apeach"
 prompts = ["The chef prepared a delicious meal."]
 
 
-@pytest.fixture(autouse=True)
-def v1(run_with_both_engines):
-    # Simple autouse wrapper to run both engines for each test
-    # This can be promoted up to conftest.py to run for every
-    # test in a package
-    pass
-
-
 @pytest.fixture(scope="module")
 def llm():
     # pytest caches the fixture so we use weakref.proxy to
@@ -70,3 +62,9 @@ def test_encode_api(llm: LLM):
     err_msg = "pooling_task must be one of.+"
     with pytest.raises(ValueError, match=err_msg):
         llm.encode(prompts, use_tqdm=False)
+
+
+def test_score_api(llm: LLM):
+    err_msg = "Score API is only enabled for num_labels == 1."
+    with pytest.raises(ValueError, match=err_msg):
+        llm.score("ping", "pong", use_tqdm=False)

tests/entrypoints/llm/test_encode.py

@@ -27,14 +27,6 @@ TOKEN_IDS = [
 ]
 
 
-@pytest.fixture(autouse=True)
-def v1(run_with_both_engines):
-    # Simple autouse wrapper to run both engines for each test
-    # This can be promoted up to conftest.py to run for every
-    # test in a package
-    pass
-
-
 @pytest.fixture(scope="module")
 def llm():
     # pytest caches the fixture so we use weakref.proxy to

tests/entrypoints/llm/test_generate_multiple_loras.py

@@ -1,80 +0,0 @@
-# SPDX-License-Identifier: Apache-2.0
-# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
-
-import weakref
-
-import pytest
-# downloading lora to test lora requests
-from huggingface_hub import snapshot_download
-
-from vllm import LLM
-from vllm.distributed import cleanup_dist_env_and_memory
-from vllm.lora.request import LoRARequest
-
-MODEL_NAME = "HuggingFaceH4/zephyr-7b-beta"
-
-PROMPTS = [
-    "Hello, my name is",
-    "The president of the United States is",
-    "The capital of France is",
-    "The future of AI is",
-]
-
-LORA_NAME = "typeof/zephyr-7b-beta-lora"
-
-
-@pytest.fixture(scope="module")
-def monkeypatch_module():
-    from _pytest.monkeypatch import MonkeyPatch
-    mpatch = MonkeyPatch()
-    yield mpatch
-    mpatch.undo()
-
-
-@pytest.fixture(scope="module", params=[False, True])
-def llm(request, monkeypatch_module):
-
-    use_v1 = request.param
-    monkeypatch_module.setenv('VLLM_USE_V1', '1' if use_v1 else '0')
-
-    # pytest caches the fixture so we use weakref.proxy to
-    # enable garbage collection
-    llm = LLM(model=MODEL_NAME,
-              tensor_parallel_size=1,
-              max_model_len=8192,
-              enable_lora=True,
-              max_loras=4,
-              max_lora_rank=64,
-              max_num_seqs=128,
-              enforce_eager=True)
-
-    yield weakref.proxy(llm)
-
-    del llm
-
-    cleanup_dist_env_and_memory()
-
-
-@pytest.fixture(scope="module")
-def zephyr_lora_files():
-    return snapshot_download(repo_id=LORA_NAME)
-
-
-@pytest.mark.skip_global_cleanup
-def test_multiple_lora_requests(llm: LLM, zephyr_lora_files):
-    lora_request = [
-        LoRARequest(LORA_NAME + str(idx), idx + 1, zephyr_lora_files)
-        for idx in range(len(PROMPTS))
-    ]
-    # Multiple SamplingParams should be matched with each prompt
-    outputs = llm.generate(PROMPTS, lora_request=lora_request)
-    assert len(PROMPTS) == len(outputs)
-
-    # Exception raised, if the size of params does not match the size of prompts
-    with pytest.raises(ValueError):
-        outputs = llm.generate(PROMPTS, lora_request=lora_request[:1])
-
-    # Single LoRARequest should be applied to every prompt
-    single_lora_request = lora_request[0]
-    outputs = llm.generate(PROMPTS, lora_request=single_lora_request)
-    assert len(PROMPTS) == len(outputs)

tests/entrypoints/llm/test_reward.py

@@ -16,14 +16,6 @@ MODEL_NAME = "internlm/internlm2-1_8b-reward"
 prompts = ["The chef prepared a delicious meal."]
 
 
-@pytest.fixture(autouse=True)
-def v1(run_with_both_engines):
-    # Simple autouse wrapper to run both engines for each test
-    # This can be promoted up to conftest.py to run for every
-    # test in a package
-    pass
-
-
 @pytest.fixture(scope="module")
 def llm():
     # pytest caches the fixture so we use weakref.proxy to

tests/entrypoints/llm/test_score.py

@@ -14,14 +14,6 @@ from ...models.utils import softmax
 MODEL_NAME = "tomaarsen/Qwen3-Reranker-0.6B-seq-cls"
 
 
-@pytest.fixture(autouse=True)
-def v1(run_with_both_engines):
-    # Simple autouse wrapper to run both engines for each test
-    # This can be promoted up to conftest.py to run for every
-    # test in a package
-    pass
-
-
 @pytest.fixture(scope="module")
 def llm():
     # pytest caches the fixture so we use weakref.proxy to

tests/entrypoints/offline_mode/test_offline_mode.py

@@ -32,15 +32,16 @@ MODEL_CONFIGS = [
         "tensor_parallel_size": 1,
         "tokenizer_mode": "mistral",
     },
-    {
-        "model": "sentence-transformers/all-MiniLM-L12-v2",
-        "enforce_eager": True,
-        "gpu_memory_utilization": 0.20,
-        "max_model_len": 64,
-        "max_num_batched_tokens": 64,
-        "max_num_seqs": 64,
-        "tensor_parallel_size": 1,
-    },
+    # TODO: re-enable once these tests are run with V1
+    # {
+    #     "model": "sentence-transformers/all-MiniLM-L12-v2",
+    #     "enforce_eager": True,
+    #     "gpu_memory_utilization": 0.20,
+    #     "max_model_len": 64,
+    #     "max_num_batched_tokens": 64,
+    #     "max_num_seqs": 64,
+    #     "tensor_parallel_size": 1,
+    # },
 ]
 
 

tests/entrypoints/openai/correctness/test_transcription_api_correctness.py

@@ -49,8 +49,7 @@ async def transcribe_audio(client, tokenizer, y, sr):
     return latency, num_output_tokens, transcription.text
 
 
-async def bound_transcribe(model_name, sem, client, audio, reference):
-    tokenizer = AutoTokenizer.from_pretrained(model_name)
+async def bound_transcribe(sem, client, tokenizer, audio, reference):
     # Use semaphore to limit concurrent requests.
     async with sem:
         result = await transcribe_audio(client, tokenizer, *audio)
@@ -63,15 +62,19 @@ async def bound_transcribe(model_name, sem, client, audio, reference):
 async def process_dataset(model, client, data, concurrent_request):
     sem = asyncio.Semaphore(concurrent_request)
 
+    # Load tokenizer once outside the loop
+    tokenizer = AutoTokenizer.from_pretrained(model)
+
     # Warmup call as the first `librosa.load` server-side is quite slow.
     audio, sr = data[0]["audio"]["array"], data[0]["audio"]["sampling_rate"]
-    _ = await bound_transcribe(model, sem, client, (audio, sr), "")
+    _ = await bound_transcribe(sem, client, tokenizer, (audio, sr), "")
 
     tasks: list[asyncio.Task] = []
     for sample in data:
         audio, sr = sample["audio"]["array"], sample["audio"]["sampling_rate"]
         task = asyncio.create_task(
-            bound_transcribe(model, sem, client, (audio, sr), sample["text"]))
+            bound_transcribe(sem, client, tokenizer, (audio, sr),
+                             sample["text"]))
         tasks.append(task)
     return await asyncio.gather(*tasks)
 

tests/entrypoints/openai/test_classification.py

@@ -226,3 +226,33 @@ def test_pooling(server: RemoteOpenAIServer, model_name: str):
         },
     )
     assert response.json()["error"]["type"] == "BadRequestError"
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("model_name", [MODEL_NAME])
+def test_score(server: RemoteOpenAIServer, model_name: str):
+    # score api is only enabled for num_labels == 1.
+    response = requests.post(
+        server.url_for("score"),
+        json={
+            "model": model_name,
+            "text_1": "ping",
+            "text_2": "pong",
+        },
+    )
+    assert response.json()["error"]["type"] == "BadRequestError"
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("model_name", [MODEL_NAME])
+def test_rerank(server: RemoteOpenAIServer, model_name: str):
+    # rerank api is only enabled for num_labels == 1.
+    response = requests.post(
+        server.url_for("rerank"),
+        json={
+            "model": model_name,
+            "query": "ping",
+            "documents": ["pong"],
+        },
+    )
+    assert response.json()["error"]["type"] == "BadRequestError"

tests/entrypoints/openai/test_cli_args.py

@@ -27,6 +27,28 @@ def serve_parser():
     return make_arg_parser(parser)
 
 
+### Test config parsing
+def test_config_arg_parsing(serve_parser, cli_config_file):
+    args = serve_parser.parse_args([])
+    assert args.port == 8000
+    args = serve_parser.parse_args(['--config', cli_config_file])
+    assert args.port == 12312
+    args = serve_parser.parse_args([
+        '--config',
+        cli_config_file,
+        '--port',
+        '9000',
+    ])
+    assert args.port == 9000
+    args = serve_parser.parse_args([
+        '--port',
+        '9000',
+        '--config',
+        cli_config_file,
+    ])
+    assert args.port == 9000
+
+
 ### Tests for LoRA module parsing
 def test_valid_key_value_format(serve_parser):
     # Test old format: name=path

tests/entrypoints/openai/test_embedding.py

@@ -24,14 +24,6 @@ DUMMY_CHAT_TEMPLATE = """{% for message in messages %}{{message['role'] + ': ' +
 DTYPE = "bfloat16"
 
 
-@pytest.fixture(autouse=True)
-def v1(run_with_both_engines):
-    # Simple autouse wrapper to run both engines for each test
-    # This can be promoted up to conftest.py to run for every
-    # test in a package
-    pass
-
-
 @pytest.fixture(scope="module")
 def server():
     args = [

tests/entrypoints/openai/test_lora_resolvers.py

@@ -47,6 +47,7 @@ class MockModelConfig:
     allowed_local_media_path: str = ""
     encoder_config = None
     generation_config: str = "auto"
+    skip_tokenizer_init: bool = False
 
     def get_diff_sampling_param(self):
         return self.diff_sampling_param or {}

tests/entrypoints/openai/test_rerank.py

@@ -14,14 +14,6 @@ MODEL_NAME = "BAAI/bge-reranker-base"
 DTYPE = "bfloat16"
 
 
-@pytest.fixture(autouse=True)
-def v1(run_with_both_engines):
-    # Simple autouse wrapper to run both engines for each test
-    # This can be promoted up to conftest.py to run for every
-    # test in a package
-    pass
-
-
 @pytest.fixture(scope="module")
 def server():
     args = ["--enforce-eager", "--max-model-len", "100", "--dtype", DTYPE]

tests/entrypoints/openai/test_score.py

@@ -12,15 +12,6 @@ from vllm.entrypoints.openai.protocol import ScoreResponse
 
 from ...utils import RemoteOpenAIServer
 
-
-@pytest.fixture(autouse=True)
-def v1(run_with_both_engines):
-    # Simple autouse wrapper to run both engines for each test
-    # This can be promoted up to conftest.py to run for every
-    # test in a package
-    pass
-
-
 MODELS = [
     {
         "name": "BAAI/bge-reranker-v2-m3",

tests/entrypoints/openai/test_token_in_token_out.py

@@ -0,0 +1,73 @@
+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+
+import os
+import tempfile
+
+import pytest
+
+from vllm.model_executor.model_loader.weight_utils import (
+    download_weights_from_hf)
+from vllm.transformers_utils.tokenizer import get_tokenizer
+
+from ...utils import RemoteOpenAIServer
+
+MODEL_NAME = "Qwen/Qwen3-0.6B"
+MODEL_PATH = os.path.join(tempfile.gettempdir(), "qwen3_06b")
+
+
+@pytest.fixture(scope="module")
+def server():
+    global MODEL_PATH
+    MODEL_PATH = download_weights_from_hf(
+        MODEL_NAME,
+        allow_patterns=["*"],
+        cache_dir=MODEL_PATH,
+        ignore_patterns=["tokenizer*", "vocab*", "*.safetensors"])
+    args = [
+        "--max-model-len",
+        "2048",
+        "--max-num-seqs",
+        "128",
+        "--enforce-eager",
+        "--skip-tokenizer-init",
+        "--load-format",
+        "dummy",
+    ]
+    with RemoteOpenAIServer(MODEL_PATH, args) as remote_server:
+        yield remote_server
+
+
+@pytest.mark.asyncio
+async def test_token_in_token_out_and_logprobs(server):
+    """
+    Test token-in-token-out and token_ids align with prompt_logprobs
+    & logprobs when return_tokens_as_token_ids is enabled.
+    """
+    tokenizer = get_tokenizer(tokenizer_name=MODEL_NAME)
+    text = "Hello, world! How are you today?"
+    token_ids = tokenizer.encode(text)
+    async with server.get_async_client() as client:
+        # Test with both return_token_ids and return_tokens_as_token_ids enabled
+        completion = await client.completions.create(
+            model=MODEL_PATH,
+            prompt=token_ids,
+            max_tokens=20,
+            temperature=0,
+            echo=True,
+            extra_body={
+                "return_token_ids": True,
+            },
+        )
+
+        # Verify all fields are present
+        assert (completion.choices[0].token_ids is not None
+                and 0 < len(completion.choices[0].token_ids) <= 20)
+        assert completion.choices[0].prompt_token_ids is not None
+
+        # Decode prompt tokens
+        if completion.choices[0].prompt_token_ids:
+            prompt_text = tokenizer.decode(
+                completion.choices[0].prompt_token_ids)
+            # The decoded prompt should match or close to original prompt
+            assert prompt_text == text

tests/kernels/quantization/test_silu_nvfp4_quant_fusion.py

@@ -0,0 +1,126 @@
+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+import pytest
+import torch
+
+from tests.kernels.utils import opcheck
+from vllm.model_executor.layers.activation import SiluAndMul
+from vllm.platforms import current_platform
+from vllm.scalar_type import scalar_types
+
+if not current_platform.has_device_capability(100):
+    pytest.skip(reason="Nvfp4 Requires compute capability of 10 or above.",
+                allow_module_level=True)
+
+DTYPES = [torch.float16, torch.bfloat16]
+SHAPES = [(128, 64), (128, 128), (256, 64), (256, 128)]
+SEEDS = [42]
+CUDA_DEVICES = ['cuda:0']
+
+FLOAT4_E2M1_MAX = scalar_types.float4_e2m1f.max()
+FLOAT8_E4M3_MAX = torch.finfo(torch.float8_e4m3fn).max
+
+BLOCK_SIZE = 16
+
+
+def ref_impl(silu_and_mul: SiluAndMul, x: torch.Tensor,
+             global_scale: torch.Tensor,
+             ref_output_scale: torch.Tensor) -> torch.Tensor:
+    silu_and_mul_out = silu_and_mul.forward_native(x)
+    assert not current_platform.is_rocm()
+    assert silu_and_mul_out.ndim >= 1, (
+        f'input.ndim needs to be >= 1, but got {silu_and_mul_out.ndim}.')
+    other_dims = 1 if silu_and_mul_out.ndim == 1 else -1
+    silu_and_mul_out = silu_and_mul_out.reshape(other_dims,
+                                                silu_and_mul_out.shape[-1])
+    m, n = silu_and_mul_out.shape
+    device = silu_and_mul_out.device
+
+    # Two fp4 values will be packed into an uint8.
+    out = torch.empty((m, n // 2), device=device, dtype=torch.uint8)
+
+    output_scale = ref_output_scale
+
+    torch.ops._C.scaled_fp4_quant(out, silu_and_mul_out, output_scale,
+                                  global_scale)
+
+    return out, output_scale
+
+
+def ops_impl(x: torch.Tensor, global_scale: torch.Tensor,
+             ref_output_scale: torch.Tensor) -> torch.Tensor:
+    out_shape = (x.shape[0], x.shape[1] // 4)
+    output_scale = ref_output_scale
+    out = torch.empty(out_shape, dtype=torch.uint8, device=x.device)
+    torch.ops._C.silu_and_mul_nvfp4_quant(out, output_scale, x, global_scale)
+    return out, output_scale
+
+
+@pytest.mark.parametrize("dtype", DTYPES)
+@pytest.mark.parametrize("shape", SHAPES)
+@pytest.mark.parametrize("seed", SEEDS)
+@pytest.mark.parametrize("device", CUDA_DEVICES)
+@torch.inference_mode()
+def test_quantize_to_fp4(
+    dtype: torch.dtype,
+    shape: tuple[int, int],
+    seed: int,
+    device: str,
+) -> None:
+    current_platform.seed_everything(seed)
+    torch.set_default_device(device)
+
+    m, n = shape
+
+    x = torch.randn((m, n), dtype=dtype)
+    tensor_amax = torch.abs(x).max().to(torch.float32)
+    global_scale = FLOAT8_E4M3_MAX * FLOAT4_E2M1_MAX / tensor_amax
+
+    block_size = 16
+
+    assert n % block_size == 0, (
+        f'last dim has to be multiple of 16, but got {n}.')
+    assert x.dtype in (torch.float16, torch.bfloat16), (
+        f'input.dtype needs to be fp16 or bf16 but got {x.dtype}.')
+
+    round_up = lambda x, y: (x + y - 1) // y * y
+    rounded_m = round_up(x.shape[0], 128)
+    scale_n = x.shape[1] // (2 * block_size)
+    rounded_n = round_up(scale_n, 4)
+    output_scale = torch.empty((rounded_m, rounded_n // 4),
+                               device=x.device,
+                               dtype=torch.int32)
+
+    layer = SiluAndMul()
+
+    ref_out, ref_out_scale = ref_impl(layer, x, global_scale, output_scale)
+
+    fusion_out, fusion_out_scale = ops_impl(x, global_scale, output_scale)
+
+    assert ref_out.dtype == torch.uint8
+    assert fusion_out.dtype == torch.uint8
+    assert ref_out.shape == fusion_out.shape
+
+    assert ref_out_scale.dtype == torch.int32
+    assert fusion_out_scale.dtype == torch.int32
+    assert ref_out_scale.shape == fusion_out_scale.shape
+
+    # Allow up to 2% of mismatched values since BF16 has accuracy issues.
+    mis_threshold = 0.02
+    atol = 0.4
+    rtol = 0.4
+    ref_logits = ref_out[-1]
+    fusion_logits = fusion_out[-1]
+
+    mis_count = torch.sum(
+        torch.abs(fusion_logits - ref_logits) > (atol +
+                                                 rtol * torch.abs(ref_logits)))
+    mis_ratio = mis_count / fusion_logits.numel()
+
+    assert mis_ratio < mis_threshold, \
+        f"Mismatch ratio {mis_ratio} exceeds threshold {mis_threshold}"
+
+    torch.testing.assert_close(ref_out_scale, fusion_out_scale)
+
+    opcheck(torch.ops._C.silu_and_mul_nvfp4_quant,
+            (fusion_out, fusion_out_scale, x, global_scale))

tests/lora/test_chatglm3_tp.py

@@ -87,6 +87,9 @@ def test_chatglm3_lora_tp4(chatglm3_lora_files):
 @multi_gpu_test(num_gpus=4)
 @create_new_process_for_each_test()
 def test_chatglm3_lora_tp4_fully_sharded_loras(chatglm3_lora_files):
+    # https://github.com/NVIDIA/nccl/issues/1790, set a lower value for
+    # gpu_memory_utilization here because NCCL >= 2.26.3 seems to use
+    # more GPU memory causing vLLM to OOM
     llm = vllm.LLM(MODEL_PATH,
                    max_model_len=1024,
                    enable_lora=True,
@@ -95,7 +98,8 @@ def test_chatglm3_lora_tp4_fully_sharded_loras(chatglm3_lora_files):
                    tensor_parallel_size=4,
                    trust_remote_code=True,
                    fully_sharded_loras=True,
-                   enable_chunked_prefill=True)
+                   enable_chunked_prefill=True,
+                   gpu_memory_utilization=0.85)
     output1 = do_sample(llm, chatglm3_lora_files, lora_id=1)
     for i in range(len(EXPECTED_LORA_OUTPUT)):
         assert output1[i] == EXPECTED_LORA_OUTPUT[i]

tests/lora/test_llm_with_multi_loras.py

@@ -1,8 +1,12 @@
 # SPDX-License-Identifier: Apache-2.0
 # SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 """
-Script to test multi loras service with tp >= 2
+This script contains:
+1. test multi loras service with tp >= 2
+2. test multi loras request
 """
+import pytest
+
 from tests.utils import multi_gpu_test
 from vllm import LLM, SamplingParams
 from vllm.lora.request import LoRARequest
@@ -156,3 +160,34 @@ def test_multi_loras_with_tp_sync():
 
         output_text = call_llm_get_outputs(prompt, "Alice")
         check_outputs(output_text, expected_output)
+
+
+def test_multiple_lora_requests():
+    llm = LLM(
+        model=MODEL_PATH,
+        enable_lora=True,
+        max_loras=4,
+        max_lora_rank=LORA_RANK,
+        max_model_len=512,
+        gpu_memory_utilization=0.5,
+        enforce_eager=True,
+    )
+    PROMPTS = ["Hello, my name is"] * 2
+    LORA_NAME = "Alice"
+    lora_request = [
+        LoRARequest(LORA_NAME + str(idx), idx + 1,
+                    LORA_NAME_PATH_MAP[LORA_NAME])
+        for idx in range(len(PROMPTS))
+    ]
+    # Multiple SamplingParams should be matched with each prompt
+    outputs = llm.generate(PROMPTS, lora_request=lora_request)
+    assert len(PROMPTS) == len(outputs)
+
+    # Exception raised, if the size of params does not match the size of prompts
+    with pytest.raises(ValueError):
+        outputs = llm.generate(PROMPTS, lora_request=lora_request[:1])
+
+    # Single LoRARequest should be applied to every prompt
+    single_lora_request = lora_request[0]
+    outputs = llm.generate(PROMPTS, lora_request=single_lora_request)
+    assert len(PROMPTS) == len(outputs)

tests/models/language/generation/test_common.py

@@ -92,7 +92,8 @@ AITER_MODEL_LIST = [
         pytest.param(
             "allenai/OLMoE-1B-7B-0924-Instruct",
             marks=[pytest.mark.cpu_model],
-        )
+        ),
+        pytest.param("swiss-ai/Apertus-8B"),  # apertus
     ])
 @pytest.mark.parametrize("max_tokens", [32])
 @pytest.mark.parametrize("num_logprobs", [5])

tests/models/language/pooling/test_embedding.py

@@ -10,14 +10,6 @@ from vllm.platforms import current_platform
 from ...utils import check_embeddings_close, check_transformers_version
 
 
-@pytest.fixture(autouse=True)
-def v1(run_with_both_engines):
-    # Simple autouse wrapper to run both engines for each test
-    # This can be promoted up to conftest.py to run for every
-    # test in a package
-    pass
-
-
 @pytest.mark.parametrize(
     "model",
     [
@@ -32,21 +24,15 @@ def v1(run_with_both_engines):
             "intfloat/e5-mistral-7b-instruct",
             # CPU v1 doesn't support sliding window
             marks=[pytest.mark.core_model]),
-        # the qwen models interfere with each other (see PR
-        # https://github.com/vllm-project/vllm/pull/18720).
-        # To avoid this problem, for now we skip v0 since it will be
-        # deprecated anyway.
         pytest.param("ssmits/Qwen2-7B-Instruct-embed-base",
-                     marks=[pytest.mark.skip_v0, pytest.mark.cpu_model]),
+                     marks=[pytest.mark.cpu_model]),
         # [Encoder-only]
         pytest.param("BAAI/bge-base-en-v1.5", marks=[pytest.mark.core_model]),
         pytest.param("sentence-transformers/all-MiniLM-L12-v2"),
         pytest.param("intfloat/multilingual-e5-small"),
-        pytest.param("Alibaba-NLP/gte-Qwen2-1.5B-instruct",
-                     marks=[pytest.mark.skip_v1]),
+        pytest.param("Alibaba-NLP/gte-Qwen2-1.5B-instruct"),
         # [Cross-Encoder]
-        pytest.param("sentence-transformers/stsb-roberta-base-v2",
-                     marks=[pytest.mark.skip_v1]),
+        pytest.param("sentence-transformers/stsb-roberta-base-v2"),
     ],
 )
 def test_models(

tests/models/language/pooling/test_qwen3_reranker.py

@@ -96,8 +96,5 @@ def test_rerank_models_mteb_tp(vllm_runner,
         "tensor_parallel_size": 2,
     }
 
-    mteb_test_rerank_models(Qwen3RerankerHfRunner,
-                            vllm_runner,
-                            model_info,
-                            vllm_extra_kwargs,
-                            atol=1.2e-2)
+    mteb_test_rerank_models(Qwen3RerankerHfRunner, vllm_runner, model_info,
+                            vllm_extra_kwargs)

tests/models/language/pooling/test_reward.py

@@ -13,14 +13,6 @@ from ....conftest import HfRunner
 from ...utils import check_transformers_version
 
 
-@pytest.fixture(autouse=True)
-def v1(run_with_both_engines):
-    # Simple autouse wrapper to run both engines for each test
-    # This can be promoted up to conftest.py to run for every
-    # test in a package
-    pass
-
-
 @pytest.fixture
 def math_step_prompts():
     # ruff: noqa: E501

tests/models/language/pooling/test_scoring.py

@@ -23,15 +23,6 @@ TEXTS_2 = [
     "The capital of Germany is Berlin.",
 ]
 
-
-@pytest.fixture(autouse=True)
-def v1(run_with_both_engines):
-    # Simple autouse wrapper to run both engines for each test
-    # This can be promoted up to conftest.py to run for every
-    # test in a package
-    pass
-
-
 DTYPE = "half"
 
 

tests/models/multimodal/generation/vlm_utils/custom_inputs.py

@@ -1,12 +1,9 @@
 # SPDX-License-Identifier: Apache-2.0
 # SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 """Custom input builders for edge-cases in different models."""
-from io import BytesIO
 from typing import Callable
 
-import requests
-from PIL import Image
-
+from vllm.assets.image import ImageAsset
 from vllm.multimodal.image import rescale_image_size
 from vllm.multimodal.video import (rescale_video_size, resize_video,
                                    sample_frames_from_video)
@@ -118,9 +115,9 @@ def different_patch_input_cases_internvl():
 
 
 def windows_attention_image_qwen2_5_vl():
-    # image from regression issue: https://github.com/vllm-project/vllm/issues/15122
-    image_url = "https://aomediacodec.github.io/av1-avif/testFiles/Link-U/hato.jpg"
-    image = Image.open(BytesIO(requests.get(image_url).content))
+
+    # image from regression issue: https://github.com/vllm-project/vllm/issues/15122 # noqa: E501
+    image = ImageAsset("hato").pil_image
 
     question = "Describe the image."
     img_prompt = "<|vision_start|><|image_pad|><|vision_end|>"

tests/models/registry.py

@@ -137,6 +137,9 @@ class _HfExamplesInfo:
 # yapf: disable
 _TEXT_GENERATION_EXAMPLE_MODELS = {
     # [Decoder-only]
+    "ApertusForCausalLM": _HfExamplesInfo("swiss-ai/Apertus-8B",
+                                          min_transformers_version="4.56.0",
+                                          trust_remote_code=True),
     "AquilaModel": _HfExamplesInfo("BAAI/AquilaChat-7B",
                                    trust_remote_code=True),
     "AquilaForCausalLM": _HfExamplesInfo("BAAI/AquilaChat2-7B",
@@ -323,8 +326,8 @@ _TEXT_GENERATION_EXAMPLE_MODELS = {
 
 _EMBEDDING_EXAMPLE_MODELS = {
     # [Text-only]
-    "BertModel": _HfExamplesInfo("BAAI/bge-base-en-v1.5", v0_only=True),
-    "Gemma2Model": _HfExamplesInfo("BAAI/bge-multilingual-gemma2", v0_only=True),  # noqa: E501
+    "BertModel": _HfExamplesInfo("BAAI/bge-base-en-v1.5"),
+    "Gemma2Model": _HfExamplesInfo("BAAI/bge-multilingual-gemma2"),  # noqa: E501
     "GritLM": _HfExamplesInfo("parasail-ai/GritLM-7B-vllm"),
     "GteModel": _HfExamplesInfo("Snowflake/snowflake-arctic-embed-m-v2.0",
                                                trust_remote_code=True),
@@ -337,9 +340,9 @@ _EMBEDDING_EXAMPLE_MODELS = {
     "LlamaModel": _HfExamplesInfo("llama", is_available_online=False),
     "MistralModel": _HfExamplesInfo("intfloat/e5-mistral-7b-instruct"),
     "ModernBertModel": _HfExamplesInfo("Alibaba-NLP/gte-modernbert-base",
-                                trust_remote_code=True, v0_only=True),
+                                trust_remote_code=True),
     "NomicBertModel": _HfExamplesInfo("nomic-ai/nomic-embed-text-v2-moe",
-                                               trust_remote_code=True, v0_only=True),  # noqa: E501
+                                               trust_remote_code=True),  # noqa: E501
     "Qwen2Model": _HfExamplesInfo("ssmits/Qwen2-7B-Instruct-embed-base"),
     "Qwen2ForRewardModel": _HfExamplesInfo("Qwen/Qwen2.5-Math-RM-72B",
                                            max_transformers_version="4.53",
@@ -347,9 +350,9 @@ _EMBEDDING_EXAMPLE_MODELS = {
     "Qwen2ForProcessRewardModel": _HfExamplesInfo("Qwen/Qwen2.5-Math-PRM-7B",
                                                   max_transformers_version="4.53",
                                                   transformers_version_reason="HF model uses remote code that is not compatible with latest Transformers"),  # noqa: E501
-    "RobertaModel": _HfExamplesInfo("sentence-transformers/stsb-roberta-base-v2", v0_only=True),  # noqa: E501
-    "RobertaForMaskedLM": _HfExamplesInfo("sentence-transformers/all-roberta-large-v1", v0_only=True),  # noqa: E501
-    "XLMRobertaModel": _HfExamplesInfo("intfloat/multilingual-e5-small", v0_only=True),  # noqa: E501
+    "RobertaModel": _HfExamplesInfo("sentence-transformers/stsb-roberta-base-v2"),  # noqa: E501
+    "RobertaForMaskedLM": _HfExamplesInfo("sentence-transformers/all-roberta-large-v1"),  # noqa: E501
+    "XLMRobertaModel": _HfExamplesInfo("intfloat/multilingual-e5-small"),  # noqa: E501
     # [Multimodal]
     "LlavaNextForConditionalGeneration": _HfExamplesInfo("royokong/e5-v"),
     "Phi3VForCausalLM": _HfExamplesInfo("TIGER-Lab/VLM2Vec-Full",
@@ -364,20 +367,19 @@ _SEQUENCE_CLASSIFICATION_EXAMPLE_MODELS = {
     "GPT2ForSequenceClassification": _HfExamplesInfo("nie3e/sentiment-polish-gpt2-small"),  # noqa: E501
 
     # [Cross-encoder]
-    "BertForSequenceClassification": _HfExamplesInfo("cross-encoder/ms-marco-MiniLM-L-6-v2", v0_only=True),  # noqa: E501
+    "BertForSequenceClassification": _HfExamplesInfo("cross-encoder/ms-marco-MiniLM-L-6-v2"),  # noqa: E501
     "GteNewForSequenceClassification": _HfExamplesInfo("Alibaba-NLP/gte-multilingual-reranker-base",  # noqa: E501
                                                        trust_remote_code=True,
                                                        hf_overrides={
                                                            "architectures": ["GteNewForSequenceClassification"]}),# noqa: E501
-    "ModernBertForSequenceClassification": _HfExamplesInfo("Alibaba-NLP/gte-reranker-modernbert-base", v0_only=True), # noqa: E501
-    "RobertaForSequenceClassification": _HfExamplesInfo("cross-encoder/quora-roberta-base", v0_only=True),  # noqa: E501
-    "XLMRobertaForSequenceClassification": _HfExamplesInfo("BAAI/bge-reranker-v2-m3", v0_only=True),  # noqa: E501
+    "ModernBertForSequenceClassification": _HfExamplesInfo("Alibaba-NLP/gte-reranker-modernbert-base"), # noqa: E501
+    "RobertaForSequenceClassification": _HfExamplesInfo("cross-encoder/quora-roberta-base"),  # noqa: E501
+    "XLMRobertaForSequenceClassification": _HfExamplesInfo("BAAI/bge-reranker-v2-m3"),  # noqa: E501
 }
 
 _AUTOMATIC_CONVERTED_MODELS = {
     # Use as_seq_cls_model for automatic conversion
     "GemmaForSequenceClassification": _HfExamplesInfo("BAAI/bge-reranker-v2-gemma",  # noqa: E501
-                                                      v0_only=True,
                                                       hf_overrides={"architectures": ["GemmaForSequenceClassification"], # noqa: E501
                                                                     "classifier_from_token": ["Yes"],  # noqa: E501
                                                                     "method": "no_post_processing"}),  # noqa: E501

tests/models/test_registry.py

@@ -24,6 +24,9 @@ from .registry import HF_EXAMPLE_MODELS
 
 @pytest.mark.parametrize("model_arch", ModelRegistry.get_supported_archs())
 def test_registry_imports(model_arch):
+    # Skip if transformers version is incompatible
+    model_info = HF_EXAMPLE_MODELS.get_hf_info(model_arch)
+    model_info.check_transformers_version(on_fail="skip")
     # Ensure all model classes can be imported successfully
     model_cls = ModelRegistry._try_load_model_cls(model_arch)
     assert model_cls is not None

tests/samplers/test_sampler.py

@@ -1,769 +0,0 @@
-# SPDX-License-Identifier: Apache-2.0
-# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
-
-import itertools
-import random
-from dataclasses import dataclass
-from typing import Optional
-from unittest.mock import Mock, patch
-
-import pytest
-import torch
-from transformers import GenerationConfig, GenerationMixin
-
-import vllm.envs as envs
-from vllm.model_executor.layers.sampler import Sampler
-from vllm.model_executor.sampling_metadata import SamplingMetadata
-from vllm.model_executor.utils import set_random_seed
-from vllm.sequence import SamplingParams, SequenceData, SequenceGroupMetadata
-from vllm.utils import Counter, is_pin_memory_available
-
-
-@pytest.fixture(scope="function", autouse=True)
-def use_v0_only(monkeypatch):
-    """
-    This file tests V0 internals, so set VLLM_USE_V1=0.
-    """
-    monkeypatch.setenv('VLLM_USE_V1', '0')
-
-
-class MockLogitsSampler(Sampler):
-
-    def __init__(self, fake_logits: torch.Tensor):
-        super().__init__()
-        self.fake_logits = fake_logits
-
-    def forward(self, *args, **kwargs):
-        return super().forward(*args, **kwargs)
-
-
-def _prepare_test(
-        batch_size: int
-) -> tuple[torch.Tensor, torch.Tensor, MockLogitsSampler]:
-    input_tensor = torch.rand((batch_size, 1024), dtype=torch.float16)
-    fake_logits = torch.full((batch_size, VOCAB_SIZE),
-                             1e-2,
-                             dtype=input_tensor.dtype)
-    sampler = MockLogitsSampler(fake_logits)
-    return input_tensor, fake_logits, sampler
-
-
-VOCAB_SIZE = 32000
-RANDOM_SEEDS = list(range(128))
-CUDA_DEVICES = [
-    f"cuda:{i}" for i in range(1 if torch.cuda.device_count() == 1 else 2)
-]
-
-
-def _do_sample(
-    batch_size: int,
-    input_tensor: torch.Tensor,
-    sampler: MockLogitsSampler,
-    sampling_params: SamplingParams,
-    device: str,
-):
-    seq_group_metadata_list: list[SequenceGroupMetadata] = []
-    seq_lens: list[int] = []
-    for i in range(batch_size):
-        seq_group_metadata_list.append(
-            SequenceGroupMetadata(
-                request_id=f"test_{i}",
-                is_prompt=True,
-                seq_data={0: SequenceData.from_seqs([1, 2, 3])},
-                sampling_params=sampling_params,
-                block_tables={0: [1]},
-            ))
-        seq_lens.append(seq_group_metadata_list[-1].seq_data[0].get_len())
-
-    sampling_metadata = SamplingMetadata.prepare(
-        seq_group_metadata_list,
-        seq_lens,
-        query_lens=seq_lens,
-        device=device,
-        pin_memory=is_pin_memory_available())
-    return sampler(logits=input_tensor, sampling_metadata=sampling_metadata)
-
-
-@pytest.mark.parametrize("seed", RANDOM_SEEDS)
-@pytest.mark.parametrize("device", CUDA_DEVICES)
-def test_sampler_all_greedy(seed: int, device: str):
-    set_random_seed(seed)
-    torch.set_default_device(device)
-    batch_size = random.randint(1, 256)
-    input_tensor, fake_logits, sampler = _prepare_test(batch_size)
-
-    sampling_params = SamplingParams(temperature=0)
-    sampler_output = _do_sample(batch_size, fake_logits, sampler,
-                                sampling_params, device)
-    expected = torch.argmax(fake_logits, dim=-1)
-    for i, sequence_output in enumerate(sampler_output):
-        for nth_output in sequence_output.samples:
-            assert nth_output.output_token == expected[i].item()
-
-
-@pytest.mark.parametrize("seed", RANDOM_SEEDS)
-@pytest.mark.parametrize("device", CUDA_DEVICES)
-def test_sampler_all_random(seed: int, device: str):
-    set_random_seed(seed)
-    torch.set_default_device(device)
-    batch_size = random.randint(1, 256)
-    _, fake_logits, sampler = _prepare_test(batch_size)
-
-    for i in range(batch_size):
-        fake_logits[i, i] = 1e2
-
-    sampling_params = SamplingParams(
-        temperature=1.0,
-        n=random.randint(1, 10),
-    )
-    sampler_output = _do_sample(batch_size, fake_logits, sampler,
-                                sampling_params, device)
-
-    for i, sequence_output in enumerate(sampler_output):
-        for nth_output in sequence_output.samples:
-            assert nth_output.output_token == i
-
-
-@pytest.mark.parametrize("seed", RANDOM_SEEDS)
-@pytest.mark.parametrize("device", CUDA_DEVICES)
-def test_sampler_all_random_seed(seed: int, device: str):
-    set_random_seed(seed)
-    torch.set_default_device(device)
-    batch_size = random.randint(1, 256)
-    _, fake_logits, sampler = _prepare_test(batch_size)
-
-    for i in range(batch_size):
-        fake_logits[i, i] = 1e2
-
-    sampling_params = SamplingParams(
-        temperature=1.0,
-        n=random.randint(1, 10),
-        seed=random.randint(0, 10000),
-    )
-    sampler_output = _do_sample(batch_size, fake_logits, sampler,
-                                sampling_params, device)
-
-    for i, sequence_output in enumerate(sampler_output):
-        for nth_output in sequence_output.samples:
-            assert nth_output.output_token == i
-
-
-@pytest.mark.parametrize("seed", RANDOM_SEEDS)
-@pytest.mark.parametrize("device", CUDA_DEVICES)
-def test_sampler_all_random_seed_deterministic(seed: int, device: str):
-    set_random_seed(seed)
-    torch.set_default_device(device)
-    batch_size = random.randint(1, 256)
-    _, fake_logits, sampler = _prepare_test(batch_size)
-
-    sampling_params = SamplingParams(
-        temperature=1.0,
-        n=random.randint(1, 10),
-        seed=random.randint(0, 10000),
-    )
-    first_sampler_output = _do_sample(batch_size, fake_logits, sampler,
-                                      sampling_params, device)
-
-    second_sampler_output = _do_sample(batch_size, fake_logits, sampler,
-                                       sampling_params, device)
-
-    assert first_sampler_output == second_sampler_output
-
-
-@pytest.mark.parametrize("seed", RANDOM_SEEDS)
-@pytest.mark.parametrize("device", CUDA_DEVICES)
-def test_sampler_min_tokens_penalty(seed: int, device: str):
-    seq_id_counter = Counter(start=random.randint(0, 100))
-    set_random_seed(seed)
-    torch.set_default_device(device)
-
-    def create_sampling_params(min_tokens,
-                               eos_token_id=0,
-                               *,
-                               stop_token_ids: Optional[list[int]] = None,
-                               prompt_logprobs: Optional[int] = None):
-        sampling_params = SamplingParams(
-            min_tokens=min_tokens,
-            max_tokens=9999,  # keep higher than max of min_tokens
-            stop_token_ids=stop_token_ids,
-            # requesting prompt_logprobs changes the structure of `logits`
-            prompt_logprobs=prompt_logprobs,
-        )
-        sampling_params.all_stop_token_ids.add(eos_token_id)
-        return sampling_params
-
-    def create_sequence_data(num_input=3, num_generated=0):
-        seq_data = SequenceData.from_seqs(
-            random.choices(range(0, VOCAB_SIZE), k=num_input))
-        if num_generated > 0:
-            seq_data.output_token_ids = random.choices(range(0, VOCAB_SIZE),
-                                                       k=num_generated)
-        return seq_data
-
-    def generate_test_case():
-        # generate multiple seq groups but limit total batch size
-        batch_size = random.randint(1, 128)
-
-        expected_penalization = []
-        sequence_metadata_list: list[SequenceGroupMetadata] = []
-        # 20% chance to generate seq group metadata list with all prompts
-        is_prompt = random.random() < 0.2
-        while batch_size > 0:
-            num_seqs = 1 if is_prompt else random.randint(1, batch_size)
-
-            eos_token_id = random.randint(0, VOCAB_SIZE - 1)
-            min_tokens = random.randint(0, 50)
-            num_stop_tokens = random.randint(0, 8)
-            if num_stop_tokens > 0:
-                stop_token_ids = random.choices(range(0, VOCAB_SIZE - 1),
-                                                k=num_stop_tokens)
-            else:
-                stop_token_ids = None
-
-            sampling_params = create_sampling_params(
-                min_tokens=min_tokens,
-                eos_token_id=eos_token_id,
-                stop_token_ids=stop_token_ids)
-
-            seq_data: dict[int, SequenceData] = {}
-            seq_group_penalization: list[bool] = []
-            for _ in range(num_seqs):
-                num_input = random.randint(1, 100)
-                num_generated = 0 if is_prompt else random.randint(1, 100)
-                seq_data[next(seq_id_counter)] = create_sequence_data(
-                    num_input=num_input, num_generated=num_generated)
-                seq_group_penalization.append(num_generated < min_tokens)
-
-            expected_penalization.extend(seq_group_penalization)
-            sequence_metadata_list.append(
-                SequenceGroupMetadata(
-                    request_id=f"test_{batch_size}",
-                    is_prompt=is_prompt,
-                    seq_data=seq_data,
-                    sampling_params=sampling_params,
-                    block_tables={},
-                ))
-            batch_size -= num_seqs
-
-        return {
-            "expected_penalization": expected_penalization,
-            "seq_group_metadata_list": sequence_metadata_list,
-        }
-
-    # define some explicit test cases for edge case behavior
-    prompt_without_penalization = {
-        "expected_penalization": [False],
-        "seq_group_metadata_list": [
-            SequenceGroupMetadata(
-                request_id="test_1",
-                is_prompt=True,
-                seq_data={
-                    next(seq_id_counter): create_sequence_data(),
-                },
-                sampling_params=create_sampling_params(0),
-                block_tables={},
-            ),
-        ]
-    }
-
-    prompt_with_penalization = {
-        "expected_penalization": [True],
-        "seq_group_metadata_list": [
-            SequenceGroupMetadata(
-                request_id="test_1",
-                is_prompt=True,
-                seq_data={
-                    next(seq_id_counter): create_sequence_data(),
-                },
-                sampling_params=create_sampling_params(1),
-                block_tables={},
-            ),
-        ]
-    }
-
-    prompt_with_penalization_and_prompt_logprobs = {
-        "expected_penalization": [False, False, True],
-        "seq_group_metadata_list": [
-            SequenceGroupMetadata(
-                request_id="test_1",
-                is_prompt=True,
-                seq_data={
-                    next(seq_id_counter): create_sequence_data(num_input=3),
-                },
-                sampling_params=create_sampling_params(1, prompt_logprobs=3),
-                block_tables={},
-            ),
-        ]
-    }
-
-    stop_penalizing_after_min_tokens = {
-        "expected_penalization": [False],
-        "seq_group_metadata_list": [
-            SequenceGroupMetadata(
-                request_id="test_1",
-                is_prompt=False,
-                seq_data={
-                    next(seq_id_counter):
-                    create_sequence_data(num_generated=1),
-                },
-                sampling_params=create_sampling_params(1),
-                block_tables={},
-            )
-        ]
-    }
-
-    stop_token_ids = [42, 99, 42, 0]  # intentional duplication
-    prompt_combination = {
-        "expected_penalization": [False, True, False],
-        "seq_group_metadata_list": [
-            SequenceGroupMetadata(
-                request_id="test_2",
-                is_prompt=True,
-                seq_data={
-                    next(seq_id_counter): create_sequence_data(num_input=2),
-                },
-                sampling_params=create_sampling_params(1, prompt_logprobs=3),
-                block_tables={},
-            ),
-            SequenceGroupMetadata(
-                request_id="test_3",
-                is_prompt=True,
-                seq_data={
-                    next(seq_id_counter): create_sequence_data(),
-                },
-                sampling_params=create_sampling_params(
-                    0, stop_token_ids=stop_token_ids),
-                block_tables={},
-            )
-        ]
-    }
-
-    stop_token_ids = [1, 999, 37, 37]  # intentional duplication
-    decode_combination = {
-        "expected_penalization": [True, False, False, True, False],
-        "seq_group_metadata_list": [
-            SequenceGroupMetadata(
-                request_id="test_1",
-                is_prompt=False,
-                seq_data={
-                    next(seq_id_counter):
-                    create_sequence_data(num_generated=1),
-                    next(seq_id_counter):
-                    create_sequence_data(num_generated=100),
-                },
-                sampling_params=create_sampling_params(
-                    2, stop_token_ids=stop_token_ids),
-                block_tables={},
-            ),
-            SequenceGroupMetadata(
-                request_id="test_2",
-                is_prompt=False,
-                seq_data={
-                    next(seq_id_counter):
-                    create_sequence_data(num_generated=20),
-                    next(seq_id_counter):
-                    create_sequence_data(num_generated=1),
-                    next(seq_id_counter):
-                    create_sequence_data(num_generated=10),
-                },
-                sampling_params=create_sampling_params(
-                    10, prompt_logprobs=5, stop_token_ids=stop_token_ids),
-                block_tables={},
-            ),
-        ]
-    }
-
-    if seed == 0:
-        test_cases = [
-            prompt_without_penalization,
-            prompt_with_penalization,
-            prompt_with_penalization_and_prompt_logprobs,
-            stop_penalizing_after_min_tokens,
-            prompt_combination,
-            decode_combination,
-        ]
-    else:
-        test_cases = [generate_test_case()]
-
-    def run_test_case(*, expected_penalization: list[bool],
-                      seq_group_metadata_list: list[SequenceGroupMetadata]):
-        assert expected_penalization, \
-            "Invalid test case, need expected_penalization"
-        assert seq_group_metadata_list, \
-            "Invalid test case, need seq_group_metadata_list"
-
-        batch_size = 0
-        seq_lens: list[int] = []
-        sampling_params_per_row: list[SamplingParams] = []
-        for sgm in seq_group_metadata_list:
-            sampling_params = sgm.sampling_params
-
-            num_rows = len(sgm.seq_data)
-            if sgm.is_prompt:
-                # a prompt seq_group has only one sequence
-                seq_data = next(iter(sgm.seq_data.values()))
-                prompt_len = seq_data.get_prompt_len()
-                seq_lens.append(prompt_len)
-
-                assert sgm.sampling_params is not None
-                if sgm.sampling_params.prompt_logprobs:
-                    # with prompt_logprobs each token in the prompt has a row in
-                    # logits
-                    num_rows = prompt_len
-
-            batch_size += num_rows
-            sampling_params_per_row.extend(
-                itertools.repeat(sampling_params, num_rows))
-
-        assert len(
-            expected_penalization
-        ) == batch_size, \
-            ("Invalid test case, expected_penalization does not match computed"
-             "batch size")
-
-        _, fake_logits, sampler = _prepare_test(batch_size)
-        sampling_metadata = SamplingMetadata.prepare(
-            seq_group_metadata_list,
-            seq_lens=seq_lens if seq_lens else None,
-            query_lens=seq_lens if seq_lens else [1] * batch_size,
-            device=device,
-            pin_memory=is_pin_memory_available())
-        # the logits tensor is modified in-place by the sampler
-        _ = sampler(logits=fake_logits, sampling_metadata=sampling_metadata)
-
-        for logits_idx, (should_penalize, sampling_params) in enumerate(
-                zip(expected_penalization, sampling_params_per_row)):
-
-            tokens_to_check = sampling_params.all_stop_token_ids
-
-            if should_penalize:
-                for token_id in tokens_to_check:
-                    assert fake_logits[logits_idx, token_id] == -float(
-                        'inf'
-                    ), f"Expected token {token_id} for logits row {logits_idx}"
-                    " to be penalized"
-                # no other tokens should be set to -inf
-                assert torch.count_nonzero(
-                    fake_logits[logits_idx, :] == -float('inf')) == len(
-                        tokens_to_check
-                    ), f"Expected only {len(tokens_to_check)} to be penalized"
-            else:
-                # no tokens should be set to -inf
-                assert torch.count_nonzero(
-                    fake_logits[logits_idx, :] ==
-                    -float('inf')) == 0, "No tokens should have been penalized"
-
-    for test_case in test_cases:
-        run_test_case(**test_case)
-
-
-@pytest.mark.parametrize("seed", RANDOM_SEEDS)
-@pytest.mark.parametrize("device", CUDA_DEVICES)
-def test_sampler_mixed(seed: int, device: str):
-    set_random_seed(seed)
-    torch.set_default_device(device)
-    batch_size = random.randint(1, 256)
-    input_tensor, fake_logits, sampler = _prepare_test(batch_size)
-
-    seq_group_metadata_list: list[SequenceGroupMetadata] = []
-    expected_tokens: list[Optional[list[int]]] = []
-    seq_lens: list[int] = []
-    for i in range(batch_size):
-        expected: Optional[list[int]] = None
-        sampling_type = random.randint(0, 2)
-        if sampling_type == 0:
-            sampling_params = SamplingParams(temperature=0)
-            expected = [int(torch.argmax(fake_logits[i], dim=-1).item())]
-        elif sampling_type in (1, 2):
-            n = random.randint(1, 10)
-            sampling_params = SamplingParams(
-                temperature=random.random() + 0.1,
-                top_p=min(random.random() + 0.1, 1),
-                top_k=random.randint(0, 10),
-                n=n,
-                presence_penalty=random.randint(0, 1),
-            )
-            if sampling_type == 2:
-                sampling_params.seed = random.randint(0, 10000)
-            else:
-                for idx in range(n):
-                    fake_logits[i, i + idx] = 1e2
-                expected = list(range(i, i + n))
-
-        expected_tokens.append(expected)
-        seq_group_metadata_list.append(
-            SequenceGroupMetadata(
-                request_id=f"test_{i}",
-                is_prompt=True,
-                seq_data={0: SequenceData.from_seqs([1, 2, 3])},
-                sampling_params=sampling_params,
-                block_tables={0: [1]},
-            ))
-        seq_lens.append(seq_group_metadata_list[-1].seq_data[0].get_len())
-
-    generators: dict[str, torch.Generator] = {}
-
-    def test_sampling():
-        sampling_metadata = SamplingMetadata.prepare(
-            seq_group_metadata_list,
-            seq_lens,
-            query_lens=seq_lens,
-            device=device,
-            pin_memory=is_pin_memory_available(),
-            generators=generators)
-        sampler_output = sampler(logits=fake_logits,
-                                 sampling_metadata=sampling_metadata)
-
-        for i, (sequence_output, metadata) in enumerate(
-                zip(sampler_output, seq_group_metadata_list)):
-            assert metadata.sampling_params is not None
-
-            if (metadata.sampling_params.seed is not None
-                    and expected_tokens[i] is None):
-                # Record seeded random result to compare with results of
-                # second invocation
-                expected_tokens[i] = [
-                    nth_output.output_token
-                    for nth_output in sequence_output.samples
-                ]
-                continue
-
-            expected_tokens_item = expected_tokens[i]
-            assert expected_tokens_item is not None
-
-            for n, nth_output in enumerate(sequence_output.samples):
-                assert metadata.sampling_params is not None
-
-                if (metadata.sampling_params.temperature == 0
-                        or metadata.sampling_params.seed is not None):
-                    # Ensure exact matches for greedy or random with seed
-                    assert nth_output.output_token == expected_tokens_item[n]
-                else:
-                    # For non-seeded random check that one of the high-logit
-                    # tokens were chosen
-                    assert nth_output.output_token in expected_tokens_item
-
-    # Test batch
-    test_sampling()
-
-    # Shuffle the batch and resample
-    target_index = list(range(batch_size))
-    for list_to_shuffle in (target_index, seq_group_metadata_list,
-                            expected_tokens, seq_lens):
-        random.Random(seed).shuffle(list_to_shuffle)
-    target_index = torch.tensor(target_index)
-    input_tensor.data = input_tensor.index_select(0, target_index)
-    fake_logits.data = fake_logits.index_select(0, target_index)
-
-    # This time, results of seeded random samples will be compared with
-    # the corresponding sample in the pre-shuffled batch
-    test_sampling()
-
-
-@pytest.mark.parametrize("seed", RANDOM_SEEDS)
-@pytest.mark.parametrize("device", CUDA_DEVICES)
-def test_sampler_top_k_top_p(seed: int, device: str):
-    set_random_seed(seed)
-    batch_size = random.randint(1, 256)
-    top_k = random.randint(100, 500)
-    top_p = random.random() * 0.1
-    vocab_size = 32000
-    input_tensor = torch.rand((batch_size, 1024),
-                              device=device,
-                              dtype=torch.float16)
-    fake_logits = torch.normal(0,
-                               5,
-                               size=(batch_size, vocab_size),
-                               device=input_tensor.device,
-                               dtype=input_tensor.dtype)
-    sampler = MockLogitsSampler(fake_logits)
-
-    generation_model = GenerationMixin()
-    generation_config = GenerationConfig(top_k=top_k,
-                                         top_p=top_p,
-                                         do_sample=True)
-
-    @dataclass
-    class MockConfig:
-        is_encoder_decoder: bool = False
-
-    generation_model.config = MockConfig()  # needed by the following method
-    generation_model._prepare_special_tokens(generation_config, device=device)
-    processors = generation_model._get_logits_processor(generation_config,
-                                                        None,
-                                                        None,
-                                                        None, [],
-                                                        device=device)
-    assert len(processors) == 2  # top_p and top_k
-
-    seq_group_metadata_list: list[SequenceGroupMetadata] = []
-    seq_lens: list[int] = []
-    for i in range(batch_size):
-        seq_group_metadata_list.append(
-            SequenceGroupMetadata(
-                request_id=f"test_{i}",
-                is_prompt=True,
-                seq_data={0: SequenceData.from_seqs([1, 2, 3])},
-                sampling_params=SamplingParams(
-                    temperature=1,
-                    top_k=top_k,
-                    top_p=top_p,
-                ),
-                block_tables={0: [1]},
-            ))
-        seq_lens.append(seq_group_metadata_list[-1].seq_data[0].get_len())
-
-    sampling_metadata = SamplingMetadata.prepare(
-        seq_group_metadata_list,
-        seq_lens,
-        query_lens=seq_lens,
-        device=device,
-        pin_memory=is_pin_memory_available())
-
-    sample_probs = None
-
-    def mock_sample(probs, *args, **kwargs):
-        nonlocal sample_probs
-        sample_probs = probs
-        return ([[prob.topk(1, dim=-1).indices.tolist(), [0]]
-                 for prob in probs], None)
-
-    # top-k and top-p is only calculated when flashinfer kernel is not available
-    with patch("vllm.model_executor.layers.sampler._sample", mock_sample), \
-         patch("vllm.model_executor.layers.sampler."
-               "flashinfer_top_k_top_p_sampling", None):
-        sampler(logits=fake_logits, sampling_metadata=sampling_metadata)
-
-    assert sample_probs is not None
-
-    hf_probs = processors(torch.zeros_like(fake_logits), fake_logits.clone())
-    hf_probs = torch.softmax(hf_probs, dim=-1, dtype=torch.float)
-    torch.testing.assert_close(hf_probs, sample_probs, rtol=0.0, atol=1e-5)
-    assert torch.equal(hf_probs.eq(0), sample_probs.eq(0))
-
-
-@pytest.mark.parametrize("seed", RANDOM_SEEDS)
-@pytest.mark.parametrize("device", CUDA_DEVICES)
-def test_flashinfer_fallback(seed: int, device: str):
-    if not envs.VLLM_USE_FLASHINFER_SAMPLER:
-        pytest.skip("Flashinfer sampler is disabled")
-
-    pytest.skip("After FlashInfer 0.2.3, sampling will never fail")
-
-    set_random_seed(seed)
-    torch.set_default_device(device)
-    batch_size = random.randint(1, 256)
-    _, fake_logits, sampler = _prepare_test(batch_size)
-
-    def failing_flashinfer_sampling(*_args, **_kwargs):
-        return None, torch.zeros(batch_size, device=device, dtype=torch.int32)
-
-    sampling_params = SamplingParams(
-        temperature=1.0,
-        n=random.randint(1, 10),
-        seed=random.randint(0, 10000),
-    )
-    sampler_output = _do_sample(batch_size, fake_logits, sampler,
-                                sampling_params, device)
-
-    with patch(
-            "vllm.model_executor.layers.sampler."
-            "flashinfer_top_k_top_p_sampling", failing_flashinfer_sampling):
-        fallback_sampler_output = _do_sample(batch_size, fake_logits, sampler,
-                                             sampling_params, device)
-
-    assert sampler_output == fallback_sampler_output
-
-
-@pytest.mark.parametrize("device", CUDA_DEVICES)
-def test_sampler_repetition_penalty_mixed(device: str):
-
-    vocab_size = 8
-
-    def test_sampling_params(sampling_params: list[SamplingParams]):
-
-        seq_group_metadata_list: list[SequenceGroupMetadata] = []
-        seq_lens: list[int] = []
-        for i in range(2):
-            seq_group_metadata_list.append(
-                SequenceGroupMetadata(
-                    request_id=f"test_{i}",
-                    is_prompt=True,
-                    seq_data={0: SequenceData.from_seqs([1, 2, 3])},
-                    sampling_params=sampling_params[i],
-                    block_tables={0: [1]},
-                ))
-            seq_lens.append(seq_group_metadata_list[-1].seq_data[0].get_len())
-
-        sampling_metadata = SamplingMetadata.prepare(
-            seq_group_metadata_list,
-            seq_lens,
-            query_lens=seq_lens,
-            device=device,
-            pin_memory=is_pin_memory_available())
-
-        fake_logits = torch.full((2, vocab_size),
-                                 1e-2,
-                                 device=device,
-                                 dtype=torch.float16)
-
-        fake_logits[:, 5] = 1.1e-2
-        fake_logits[:, 1] = 1.2e-2
-
-        sampler = MockLogitsSampler(fake_logits)
-
-        sampler_output = sampler(logits=fake_logits,
-                                 sampling_metadata=sampling_metadata)
-
-        generated_tokens = []
-        for output in sampler_output:
-            generated_tokens.append(output.samples[0].output_token)
-
-        return generated_tokens
-
-    # one configuration is greedy with repetition_penalty
-    sampling_params_rep = SamplingParams(
-        temperature=0.0,
-        repetition_penalty=2.0,
-    )
-
-    # other configuration is sampling w/o repetition_penalty
-    sampling_params_sample = SamplingParams(
-        temperature=1.0,
-        top_k=1,
-        seed=42,
-    )
-
-    tokens1 = test_sampling_params(
-        [sampling_params_rep, sampling_params_sample])
-
-    tokens2 = test_sampling_params(
-        [sampling_params_sample, sampling_params_rep])
-
-    assert tokens1[0] == tokens2[1]
-    assert tokens1[1] == tokens2[0]
-
-
-@pytest.mark.parametrize("device", CUDA_DEVICES)
-def test_sampler_include_gpu_probs_tensor(device: str):
-    set_random_seed(42)
-    torch.set_default_device(device)
-    batch_size = random.randint(1, 256)
-    _, fake_logits, sampler = _prepare_test(batch_size)
-    sampler.include_gpu_probs_tensor = True
-    sampler.should_modify_greedy_probs_inplace = False
-
-    sampling_params = SamplingParams(temperature=0)
-
-    mock_inplace = Mock()
-    with patch(
-            "vllm.model_executor.layers.sampler._modify_greedy_probs_inplace",
-            mock_inplace):
-
-        sampler_output = _do_sample(batch_size, fake_logits, sampler,
-                                    sampling_params, device)
-        mock_inplace.assert_not_called()
-
-    assert sampler_output.sampled_token_probs is not None
-    assert sampler_output.logprobs is not None
-    assert sampler_output.sampled_token_ids is not None

tests/samplers/test_seeded_generate.py

@@ -1,86 +0,0 @@
-# SPDX-License-Identifier: Apache-2.0
-# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
-"""Verify that seeded random sampling is deterministic.
-
-Run `pytest tests/samplers/test_seeded_generate.py`.
-"""
-import copy
-import random
-from itertools import combinations
-
-import pytest
-
-from vllm import SamplingParams
-from vllm.model_executor.utils import set_random_seed
-
-MODEL = "facebook/opt-125m"
-RANDOM_SEEDS = list(range(5))
-
-
-@pytest.fixture
-def vllm_model(vllm_runner, monkeypatch):
-    # This file relies on V0 internals.
-    monkeypatch.setenv("VLLM_USE_V1", "0")
-    with vllm_runner(MODEL, dtype="half") as vllm_model:
-        yield vllm_model
-
-
-@pytest.mark.parametrize("seed", RANDOM_SEEDS)
-def test_random_sample_with_seed(
-    vllm_model,
-    example_prompts,
-    seed: int,
-) -> None:
-    set_random_seed(seed)
-
-    sampling_params = SamplingParams(
-        # Parameters to ensure sufficient randomness
-        temperature=3.0,
-        top_p=min(random.random() + 0.3, 1),
-        top_k=random.randint(5, 20),
-        n=random.randint(1, 10),
-        presence_penalty=random.randint(0, 1),
-        max_tokens=8,
-        ignore_eos=True,
-    )
-
-    sampling_params_seed_1 = copy.deepcopy(sampling_params)
-    sampling_params_seed_1.seed = 100
-    sampling_params_seed_2 = copy.deepcopy(sampling_params)
-    sampling_params_seed_2.seed = 200
-
-    llm = vllm_model.llm
-
-    for prompt in example_prompts:
-        for params in (
-                sampling_params,
-                sampling_params_seed_1,
-                sampling_params_seed_2,
-                sampling_params,
-                sampling_params_seed_1,
-                sampling_params_seed_2,
-        ):
-            llm._add_request(prompt, params=params)
-
-    results = llm._run_engine(use_tqdm=False)
-    all_outputs = [[out.token_ids for out in output.outputs]
-                   for output in results]
-
-    for i in range(0, len(example_prompts), 6):
-        outputs = all_outputs[i:i + 6]
-
-        # verify all non-seeded requests differ
-        for output_a, output_b in combinations(
-            (outputs[0], outputs[1], outputs[2], outputs[3]),
-                2,
-        ):
-            assert output_a != output_b
-
-        # verify requests with the same seed match
-        assert outputs[1] == outputs[4]
-        assert outputs[2] == outputs[5]
-
-        # verify generations within the same parallel sampling group differ
-        for output in outputs:
-            for sub_output_a, sub_output_b in combinations(output, 2):
-                assert sub_output_a != sub_output_b

tests/tokenization/test_detokenize.py

@@ -64,8 +64,6 @@ def _run_incremental_decode(tokenizer,
     request = EngineCoreRequest("",
                                 prompt_token_ids,
                                 None,
-                                None,
-                                None,
                                 params,
                                 None,
                                 None,

tests/utils_/test_utils.py

@@ -948,6 +948,36 @@ def test_join_host_port():
     assert join_host_port("::1", 5555) == "[::1]:5555"
 
 
+def test_json_count_leaves():
+    """Test json_count_leaves function from jsontree utility."""
+    from vllm.utils.jsontree import json_count_leaves
+
+    # Single leaf values
+    assert json_count_leaves(42) == 1
+    assert json_count_leaves("hello") == 1
+    assert json_count_leaves(None) == 1
+
+    # Empty containers
+    assert json_count_leaves([]) == 0
+    assert json_count_leaves({}) == 0
+    assert json_count_leaves(()) == 0
+
+    # Flat structures
+    assert json_count_leaves([1, 2, 3]) == 3
+    assert json_count_leaves({"a": 1, "b": 2}) == 2
+    assert json_count_leaves((1, 2, 3)) == 3
+
+    # Nested structures
+    nested_dict = {"a": 1, "b": {"c": 2, "d": 3}}
+    assert json_count_leaves(nested_dict) == 3
+
+    nested_list = [1, [2, 3], 4]
+    assert json_count_leaves(nested_list) == 4
+
+    mixed_nested = {"list": [1, 2], "dict": {"x": 3}, "value": 4}
+    assert json_count_leaves(mixed_nested) == 4
+
+
 def test_convert_ids_list_to_tokens():
     tokenizer = AutoTokenizer.from_pretrained("Qwen/Qwen2.5-1.5B-Instruct")
     token_ids = tokenizer.encode("Hello, world!")

tests/v1/core/test_kv_cache_utils.py

@@ -7,7 +7,8 @@ import pytest
 import torch
 
 from vllm.config import ModelConfig, SchedulerConfig, VllmConfig
-from vllm.multimodal.inputs import MultiModalKwargsItem, PlaceholderRange
+from vllm.multimodal.inputs import (MultiModalFeatureSpec,
+                                    MultiModalKwargsItem, PlaceholderRange)
 from vllm.sampling_params import SamplingParams
 from vllm.utils import GiB_bytes, sha256, sha256_cbor_64bit
 from vllm.v1.core.kv_cache_manager import KVCacheManager
@@ -37,17 +38,20 @@ def make_request(
     mm_hashes: Optional[list[str]] = None,
     cache_salt: Optional[str] = None,
 ):
-    if mm_positions is None:
-        mm_kwargs = None
-    else:
-        mm_item = MultiModalKwargsItem.dummy("dummy_m")
-        mm_kwargs = [mm_item] * len(mm_positions)
+    mm_features = []
+    if mm_positions is not None:
+        for j, position in enumerate(mm_positions):
+            identifier = mm_hashes[j] if mm_hashes else f"hash_{j}"
+            mm_feature = MultiModalFeatureSpec(
+                data=MultiModalKwargsItem.dummy("dummy_m"),
+                mm_position=position,
+                identifier=identifier,
+                modality="image")
+            mm_features.append(mm_feature)
 
     return Request(request_id=request_id,
                    prompt_token_ids=prompt_token_ids,
-                   multi_modal_kwargs=mm_kwargs,
-                   multi_modal_hashes=mm_hashes,
-                   multi_modal_placeholders=mm_positions,
+                   mm_features=mm_features if mm_features else None,
                    sampling_params=SamplingParams(max_tokens=17),
                    pooling_params=None,
                    eos_token_id=100,
@@ -597,8 +601,14 @@ def test_unify_kv_cache_configs():
     ]
 
     unify_kv_cache_configs(need_sort_kv_cache_config)
-    assert need_sort_kv_cache_config[0].num_blocks == 10
-    assert need_sort_kv_cache_config[1].num_blocks == 10
+    sorted_kv_cache_groups = [
+        KVCacheGroupSpec(["layer1"], new_kv_cache_spec()),
+        KVCacheGroupSpec(["layer2"], new_kv_cache_spec(num_kv_heads=4)),
+    ]
+    assert (
+        need_sort_kv_cache_config[0].kv_cache_groups == sorted_kv_cache_groups)
+    assert (
+        need_sort_kv_cache_config[1].kv_cache_groups == sorted_kv_cache_groups)
 
     diff_kv_cache_config = [
         KVCacheConfig(

tests/v1/core/test_prefix_caching.py

@@ -9,7 +9,8 @@ import pytest
 import torch
 
 from vllm.distributed.kv_events import AllBlocksCleared, BlockRemoved
-from vllm.multimodal.inputs import MultiModalKwargsItem, PlaceholderRange
+from vllm.multimodal.inputs import (MultiModalFeatureSpec,
+                                    MultiModalKwargsItem, PlaceholderRange)
 from vllm.sampling_params import SamplingParams
 from vllm.utils import sha256, sha256_cbor_64bit
 from vllm.v1.core.block_pool import BlockPool
@@ -32,17 +33,20 @@ def make_request(
     prompt_logprobs: Optional[int] = None,
     cache_salt: Optional[str] = None,
 ):
-    if mm_positions is None:
-        mm_kwargs = None
-    else:
-        mm_item = MultiModalKwargsItem.dummy("dummy_m")
-        mm_kwargs = [mm_item] * len(mm_positions)
+    mm_features = []
+    if mm_positions is not None:
+        for j, position in enumerate(mm_positions):
+            identifier = mm_hashes[j] if mm_hashes else f"hash_{j}"
+            mm_feature = MultiModalFeatureSpec(
+                data=MultiModalKwargsItem.dummy("dummy_m"),
+                mm_position=position,
+                identifier=identifier,
+                modality="image")
+            mm_features.append(mm_feature)
 
     return Request(request_id=request_id,
                    prompt_token_ids=prompt_token_ids,
-                   multi_modal_kwargs=mm_kwargs,
-                   multi_modal_hashes=mm_hashes,
-                   multi_modal_placeholders=mm_positions,
+                   mm_features=mm_features if mm_features else None,
                    sampling_params=SamplingParams(
                        max_tokens=17, prompt_logprobs=prompt_logprobs),
                    pooling_params=None,

tests/v1/core/test_scheduler.py

@@ -8,7 +8,8 @@ import torch
 
 from vllm.config import (CacheConfig, KVTransferConfig, ModelConfig,
                          SchedulerConfig, SpeculativeConfig, VllmConfig)
-from vllm.multimodal.inputs import MultiModalKwargsItem, PlaceholderRange
+from vllm.multimodal.inputs import (MultiModalFeatureSpec,
+                                    MultiModalKwargsItem, PlaceholderRange)
 from vllm.sampling_params import GuidedDecodingParams, SamplingParams
 from vllm.v1.core.sched.output import CachedRequestData, SchedulerOutput
 from vllm.v1.core.sched.scheduler import Scheduler
@@ -1308,21 +1309,24 @@ def create_requests_with_priority(
                                      prompt_logprobs=prompt_logprobs)
     requests = []
     for i in range(num_requests):
+        mm_features = []
         if mm_positions is not None:
             mm_position = mm_positions[i]
-            mm_item = MultiModalKwargsItem.dummy("dummy_m")
-            mm_kwargs = [mm_item] * len(mm_position)
-        else:
-            mm_position = None
-            mm_kwargs = None
+            for j, position in enumerate(mm_position):
+                identifier = f"hash{i}_{j}"
+                mm_feature = MultiModalFeatureSpec(
+                    data=MultiModalKwargsItem.dummy("dummy_m"),
+                    mm_position=position,
+                    identifier=identifier,
+                    modality="image")
+                mm_features.append(mm_feature)
+
         request = Request(
             request_id=f"{i + starting_idx}",
             prompt_token_ids=[i + starting_idx] * num_tokens,
             sampling_params=sampling_params,
             pooling_params=None,
-            multi_modal_kwargs=mm_kwargs,
-            multi_modal_placeholders=mm_position,
-            multi_modal_hashes=None,
+            mm_features=mm_features if mm_features else None,
             eos_token_id=EOS_TOKEN_ID,
             arrival_time=arrival_times[i],
             priority=priorities[i],
@@ -1801,9 +1805,7 @@ def test_schedule_skip_tokenizer_init_structured_output_request():
     request = Request(
         request_id="0",
         prompt_token_ids=[0, 1],
-        multi_modal_kwargs=None,
-        multi_modal_hashes=None,
-        multi_modal_placeholders=None,
+        mm_features=None,
         sampling_params=sampling_params,
         pooling_params=None,
         eos_token_id=EOS_TOKEN_ID,

tests/v1/core/utils.py

@@ -6,7 +6,8 @@ import torch
 
 from vllm.config import (CacheConfig, KVTransferConfig, ModelConfig,
                          SchedulerConfig, SpeculativeConfig, VllmConfig)
-from vllm.multimodal.inputs import MultiModalKwargsItem, PlaceholderRange
+from vllm.multimodal.inputs import (MultiModalFeatureSpec,
+                                    MultiModalKwargsItem, PlaceholderRange)
 from vllm.sampling_params import SamplingParams
 from vllm.v1.core.kv_cache_utils import (get_request_block_hasher,
                                          init_none_hash)
@@ -139,19 +140,20 @@ def create_requests(
                                      prompt_logprobs=prompt_logprobs)
     requests = []
     for i in range(num_requests):
+        mm_features = []
         if mm_positions is not None:
             mm_position = mm_positions[i]
-            mm_item = MultiModalKwargsItem.dummy("dummy_m")
-            mm_kwargs = [mm_item] * len(mm_position)
+            for j, position in enumerate(mm_position):
                 # Dummy hash for each mm item should be unique
                 # since encoder cache tracks entries by hash
-            mm_hashes = [
-                "hash" + str(i) + "_" + str(j) for j in range(len(mm_position))
-            ]
-        else:
-            mm_position = None
-            mm_kwargs = None
-            mm_hashes = None
+                identifier = f"hash{i}_{j}"
+                mm_feature = MultiModalFeatureSpec(
+                    data=MultiModalKwargsItem.dummy("dummy_m"),
+                    mm_position=position,
+                    identifier=identifier,
+                    modality="image")
+                mm_features.append(mm_feature)
+
         prompt_token_ids = ([0] * num_tokens if same_prompt else [i] *
                             num_tokens)
         request = Request(
@@ -159,9 +161,7 @@ def create_requests(
             prompt_token_ids=prompt_token_ids,
             sampling_params=sampling_params,
             pooling_params=None,
-            multi_modal_kwargs=mm_kwargs,
-            multi_modal_placeholders=mm_position,
-            multi_modal_hashes=mm_hashes,
+            mm_features=mm_features if mm_features else None,
             eos_token_id=EOS_TOKEN_ID,
             block_hasher=block_hasher,
         )

tests/v1/e2e/test_kv_sharing_fast_prefill.py

@@ -2,7 +2,6 @@
 # SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 import random
-from typing import Optional, Union
 
 import pytest
 import torch
@@ -10,12 +9,6 @@ import torch
 from vllm import LLM, SamplingParams
 from vllm.config import CompilationConfig, CompilationLevel
 from vllm.distributed import cleanup_dist_env_and_memory
-from vllm.forward_context import get_forward_context
-from vllm.model_executor.models.gemma3n_mm import (
-    Gemma3nForConditionalGeneration)
-from vllm.model_executor.models.registry import ModelRegistry
-from vllm.model_executor.models.utils import extract_layer_index
-from vllm.sequence import IntermediateTensors
 
 from ...utils import fork_new_process_for_each_test
 
@@ -23,54 +16,6 @@ from ...utils import fork_new_process_for_each_test
 SEED = 42
 
 
-class TestGemma3nForConditionalGeneration(Gemma3nForConditionalGeneration):
-
-    def forward(
-        self,
-        input_ids: torch.Tensor,
-        positions: torch.Tensor,
-        intermediate_tensors: Optional[IntermediateTensors] = None,
-        inputs_embeds: Optional[torch.Tensor] = None,
-        **kwargs,
-    ) -> Union[torch.Tensor, IntermediateTensors]:
-        hidden_states = super().forward(input_ids, positions,
-                                        intermediate_tensors, inputs_embeds,
-                                        **kwargs)
-        attn_metadata = get_forward_context().attn_metadata
-        # attn_metadata is None during dummy runs
-        if (attn_metadata is not None
-                and self.language_model.cache_config.kv_sharing_fast_prefill):
-            assert isinstance(attn_metadata, dict)  # true in V1
-            # Gemma3n-E2B has 30 layers, with last 20 layers being
-            # cross-decoder layers. Check attention metadata is correct
-            for layer_name, metadata in attn_metadata.items():
-                layer_idx = extract_layer_index(layer_name)
-                if layer_idx >= 20:
-                    assert hasattr(metadata, 'logits_indices_padded')
-                    assert hasattr(metadata, 'num_logits_indices')
-                else:
-                    assert not hasattr(metadata, 'logits_indices_padded')
-                    assert not hasattr(metadata, 'num_logits_indices')
-
-            # Last layer will be a KV sharing layer
-            layer_attn_metadata = attn_metadata[
-                self.language_model.model.layers[-1].self_attn.attn.layer_name]
-            logits_indices_padded = (layer_attn_metadata.logits_indices_padded)
-            assert logits_indices_padded is not None
-            num_logits_indices = layer_attn_metadata.num_logits_indices
-            assert num_logits_indices > 0
-            # Reset hidden states to random values and
-            # only set logits at logits_indices to valid values
-            # Because logits_indices are the only positions that are used
-            # for output token sampling, this still produces same outputs
-            logits_hs = hidden_states[logits_indices_padded]
-            hidden_states = torch.randn_like(hidden_states)
-            gen_indices = logits_indices_padded[:num_logits_indices]
-            hidden_states[gen_indices] = logits_hs[:num_logits_indices]
-
-        return hidden_states
-
-
 @pytest.fixture
 def test_prompts():
     """
@@ -119,13 +64,12 @@ def cleanup(llm: LLM, compilation_config: CompilationConfig):
 
 @fork_new_process_for_each_test
 @pytest.mark.parametrize("enforce_eager", [True])
+@pytest.mark.skip(reason="Disable until Gemma3n supports fast prefill")
 def test_kv_sharing_fast_prefill(
     monkeypatch: pytest.MonkeyPatch,
     enforce_eager: bool,
     test_prompts: list[str],
 ):
-    ModelRegistry.register_model("Gemma3nForConditionalGeneration",
-                                 TestGemma3nForConditionalGeneration)
     sampling_params = SamplingParams(temperature=0.0, max_tokens=100)
     compilation_config = CompilationConfig(
         # This allows vLLM compilation backend to handle allocating and

tests/v1/engine/test_engine_core.py

@@ -35,9 +35,7 @@ def make_request() -> EngineCoreRequest:
     return EngineCoreRequest(
         request_id=str(uuid.uuid4()),
         prompt_token_ids=PROMPT_TOKENS,
-        mm_kwargs=None,
-        mm_hashes=None,
-        mm_placeholders=None,
+        mm_features=None,
         sampling_params=SamplingParams(),
         pooling_params=None,
         eos_token_id=None,
@@ -308,17 +306,17 @@ def test_engine_core_concurrent_batches(monkeypatch: pytest.MonkeyPatch):
 
         # Schedule Batch 1: (10, req0)
         assert engine_core.step_with_batch_queue()[0] is None
-        assert engine_core.batch_queue.qsize() == 1
-        scheduler_output = engine_core.batch_queue.queue[-1][1]
+        assert len(engine_core.batch_queue) == 1
+        scheduler_output = engine_core.batch_queue[-1][1]
         assert scheduler_output.num_scheduled_tokens["0"] == 10
         # num_computed_tokens should have been updated immediately.
         assert engine_core.scheduler.requests[
             req0.request_id].num_computed_tokens == 10
 
         # Schedule Batch 2: (2, req0), (8, req1)
-        assert engine_core.step_with_batch_queue()[0] is None
-        assert engine_core.batch_queue.qsize() == 2
-        scheduler_output = engine_core.batch_queue.queue[-1][1]
+        assert engine_core.step_with_batch_queue()[0] == {}
+        assert len(engine_core.batch_queue) == 1
+        scheduler_output = engine_core.batch_queue[-1][1]
         assert scheduler_output.num_scheduled_tokens["0"] == 2
         assert scheduler_output.num_scheduled_tokens["1"] == 8
         # num_computed_tokens should have been updated immediately.
@@ -327,42 +325,32 @@ def test_engine_core_concurrent_batches(monkeypatch: pytest.MonkeyPatch):
 
         assert engine_core.scheduler.get_num_unfinished_requests() == 2
 
-        # Batch queue is full. Finish Batch 1.
-        engine_core.step_with_batch_queue()
-
-        # Schedule Batch 3: (4, req1). Note that req0 cannot be scheduled
+        # Finish Batch 1 and schedule Batch 3: (4, req1).
+        # Note that req0 cannot be scheduled
         # because it is in the decoding stage now.
         engine_core.step_with_batch_queue()
-        assert engine_core.batch_queue.qsize() == 2
-        scheduler_output = engine_core.batch_queue.queue[-1][1]
+        assert len(engine_core.batch_queue) == 1
+        scheduler_output = engine_core.batch_queue[-1][1]
         assert scheduler_output.num_scheduled_tokens["1"] == 4
 
-        # Batch queue is full. Finish Batch 2. Get first token of req0.
+        # Finish Batch 2. Get first token of req0.
+        # Schedule Batch 4: (1, req0).
         output = engine_core.step_with_batch_queue()[0].get(0)
         assert output is not None
         assert len(output.outputs) == 1
         assert engine_core.scheduler.requests[req0.request_id].num_tokens == 13
-
-        # Schedule Batch 4: (1, req0).
-        engine_core.step_with_batch_queue()
-        assert engine_core.batch_queue.qsize() == 2
-        scheduler_output = engine_core.batch_queue.queue[-1][1]
+        scheduler_output = engine_core.batch_queue[-1][1]
         assert scheduler_output.num_scheduled_tokens["0"] == 1
 
-        # Batch queue is full. Finish Batch 3. Get first token of req1.
+        # Finish Batch 3. Get first token of req1. Schedule Batch 5: (1, req1).
         output = engine_core.step_with_batch_queue()[0].get(0)
         assert output is not None
         assert len(output.outputs) == 1
         assert engine_core.scheduler.requests[req1.request_id].num_tokens == 13
-
-        # Schedule Batch 5: (1, req1).
-        engine_core.step_with_batch_queue()
-        assert engine_core.batch_queue.qsize() == 2
-        scheduler_output = engine_core.batch_queue.queue[-1][1]
+        scheduler_output = engine_core.batch_queue[-1][1]
         assert scheduler_output.num_scheduled_tokens["1"] == 1
 
         # Loop until req0 is finished.
-        step = 0
         req_id = 0
         expected_num_tokens = [
             engine_core.scheduler.requests["0"].num_tokens + 1,
@@ -370,8 +358,7 @@ def test_engine_core_concurrent_batches(monkeypatch: pytest.MonkeyPatch):
         ]
         while engine_core.scheduler.get_num_unfinished_requests() == 2:
             output = engine_core.step_with_batch_queue()[0]
-            if step % 2 == 0:
-                # Even steps consumes an output.
+            # Every step consumes an output.
             assert output is not None
             assert len(output[0].outputs) == 1
             if req_id in engine_core.scheduler.requests:
@@ -379,10 +366,6 @@ def test_engine_core_concurrent_batches(monkeypatch: pytest.MonkeyPatch):
                     req_id].num_tokens == expected_num_tokens[req_id]
             expected_num_tokens[req_id] += 1
             req_id = (req_id + 1) % 2
-            else:
-                # Odd steps schedules a new batch.
-                assert output is None
-            step += 1
 
 
 @multi_gpu_test(num_gpus=2)

tests/v1/engine/test_engine_core_client.py

@@ -52,9 +52,7 @@ def make_request(
     return EngineCoreRequest(
         request_id=str(uuid.uuid4()),
         prompt_token_ids=prompt_tokens_ids,
-        mm_kwargs=None,
-        mm_hashes=None,
-        mm_placeholders=None,
+        mm_features=None,
         sampling_params=params,
         pooling_params=None,
         eos_token_id=None,

tests/v1/engine/test_fast_incdec_prefix_err.py

@@ -26,16 +26,14 @@ def test_fast_inc_detok_invalid_utf8_err_case():
     prompt_token_ids = [107, 4606, 236787, 107]
     params = SamplingParams(skip_special_tokens=True)
     request = EngineCoreRequest(
-        "test",
-        prompt_token_ids,
-        None,
-        None,
-        None,
-        params,
-        None,
-        None,
-        0.0,
-        None,
+        request_id="test",
+        prompt_token_ids=prompt_token_ids,
+        mm_features=None,
+        sampling_params=params,
+        pooling_params=None,
+        eos_token_id=None,
+        arrival_time=0.0,
+        lora_request=None,
         cache_salt=None,
         data_parallel_rank=None,
     )

tests/v1/engine/test_output_processor.py

@@ -52,11 +52,9 @@ def test_incremental_detokenization(request_output_kind: RequestOutputKind,
     requests = [
         EngineCoreRequest(request_id=f"request-{idx}",
                           prompt_token_ids=prompt_tokens,
-                          arrival_time=0,
-                          mm_kwargs=None,
-                          mm_hashes=None,
-                          mm_placeholders=None,
+                          mm_features=None,
                           eos_token_id=None,
+                          arrival_time=0,
                           lora_request=None,
                           cache_salt=None,
                           data_parallel_rank=None,
@@ -401,11 +399,9 @@ def test_logprobs_processor(request_output_kind: RequestOutputKind,
     requests = [
         EngineCoreRequest(request_id=request_id_list[idx],
                           prompt_token_ids=prompt_tokens,
-                          arrival_time=0,
-                          mm_kwargs=None,
-                          mm_hashes=None,
-                          mm_placeholders=None,
+                          mm_features=None,
                           eos_token_id=None,
+                          arrival_time=0,
                           lora_request=None,
                           cache_salt=None,
                           data_parallel_rank=None,
@@ -566,11 +562,9 @@ def test_stop_token(include_stop_str_in_output: bool,
     request = EngineCoreRequest(
         request_id=request_id,
         prompt_token_ids=prompt_tokens,
-        arrival_time=0,
-        mm_kwargs=None,
-        mm_hashes=None,
-        mm_placeholders=None,
+        mm_features=None,
         eos_token_id=eos_token_id,
+        arrival_time=0,
         lora_request=None,
         cache_salt=None,
         data_parallel_rank=None,
@@ -665,11 +659,9 @@ def test_stop_string(include_stop_str_in_output: bool,
         EngineCoreRequest(
             request_id=request_id_list[idx],
             prompt_token_ids=prompt_tokens,
-            arrival_time=0,
-            mm_kwargs=None,
-            mm_hashes=None,
-            mm_placeholders=None,
+            mm_features=None,
             eos_token_id=None,
+            arrival_time=0,
             lora_request=None,
             cache_salt=None,
             data_parallel_rank=None,
@@ -781,11 +773,9 @@ def test_iteration_stats(dummy_test_vectors):
         EngineCoreRequest(
             request_id=f"request-{idx}",
             prompt_token_ids=prompt_tokens,
-            arrival_time=0,
-            mm_kwargs=None,
-            mm_hashes=None,
-            mm_placeholders=None,
+            mm_features=None,
             eos_token_id=None,
+            arrival_time=0,
             lora_request=None,
             cache_salt=None,
             data_parallel_rank=None,

tests/v1/engine/test_processor_multi_modal_uuids.py

@@ -0,0 +1,229 @@
+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+
+import pytest
+
+from vllm.assets.image import ImageAsset
+from vllm.assets.video import VideoAsset
+from vllm.config import CacheConfig, DeviceConfig, ModelConfig, VllmConfig
+from vllm.platforms.interface import UnspecifiedPlatform
+from vllm.sampling_params import SamplingParams
+from vllm.v1.engine import processor as processor_mod
+from vllm.v1.engine.processor import Processor
+
+cherry_pil_image = ImageAsset("cherry_blossom").pil_image
+stop_pil_image = ImageAsset("stop_sign").pil_image
+baby_reading_np_ndarrays = VideoAsset("baby_reading").np_ndarrays
+
+
+# Mock processor for testing
+def _mk_processor(monkeypatch,
+                  *,
+                  mm_cache_gb: float = 4.0,
+                  enable_prefix_caching: bool = True) -> Processor:
+    """
+    Create a Processor instance with minimal configuration suitable for unit
+    tests without accessing external resources.
+    """
+    monkeypatch.setattr(ModelConfig,
+                        "try_get_generation_config",
+                        lambda self: {},
+                        raising=True)
+    monkeypatch.setattr(ModelConfig,
+                        "__post_init__",
+                        lambda self: None,
+                        raising=True)
+    monkeypatch.setattr(UnspecifiedPlatform,
+                        "is_async_output_supported",
+                        classmethod(lambda cls, enforce_eager: True),
+                        raising=True)
+    monkeypatch.setattr(
+        ModelConfig,
+        "verify_async_output_proc",
+        lambda self, parallel_config, speculative_config, device_config: None,
+        raising=True)
+    monkeypatch.setattr(ModelConfig,
+                        "verify_with_parallel_config",
+                        lambda self, parallel_config: None,
+                        raising=True)
+    monkeypatch.setattr(processor_mod,
+                        "processor_cache_from_config",
+                        lambda vllm_config, mm_registry: None,
+                        raising=True)
+
+    monkeypatch.setattr(VllmConfig,
+                        "__post_init__",
+                        lambda self: None,
+                        raising=True)
+
+    model_config = ModelConfig(
+        skip_tokenizer_init=True,
+        max_model_len=128,
+        mm_processor_cache_gb=mm_cache_gb,
+        generation_config="vllm",
+        tokenizer="dummy",
+    )
+
+    # Minimal multimodal_config to satisfy references in
+    # Processor.process_inputs.
+    class _MockMMConfig:
+
+        def __init__(self, gb: float):
+            self.mm_processor_cache_gb = gb
+
+    model_config.multimodal_config = _MockMMConfig(
+        mm_cache_gb)  # type: ignore[attr-defined]
+    vllm_config = VllmConfig(
+        model_config=model_config,
+        cache_config=CacheConfig(enable_prefix_caching=enable_prefix_caching),
+        device_config=DeviceConfig(device="cpu"),
+    )
+
+    # Pass tokenizer=None; InputPreprocessor handles None when
+    # skip_tokenizer_init is True.
+    return Processor(vllm_config, tokenizer=None)  # type: ignore[arg-type]
+
+
+def test_multi_modal_uuids_length_mismatch_raises(monkeypatch):
+    processor = _mk_processor(monkeypatch)
+
+    prompt = {
+        "prompt": "USER: <image>\nDescribe\nASSISTANT:",
+        "multi_modal_data": {
+            "image": [cherry_pil_image, stop_pil_image]
+        },
+        # Mismatch: 2 items but only 1 uuid provided
+        "multi_modal_uuids": {
+            "image": ["hash_cherry"]
+        },
+    }
+
+    with pytest.raises(ValueError, match="must have same length as data"):
+        processor.process_inputs(
+            request_id="req-1",
+            prompt=prompt,  # type: ignore[arg-type]
+            params=SamplingParams(),
+        )
+
+
+def test_multi_modal_uuids_missing_modality_raises(monkeypatch):
+    processor = _mk_processor(monkeypatch)
+
+    prompt = {
+        "prompt": "USER: <image><video>\nDescribe\nASSISTANT:",
+        # Two modalities provided in data
+        "multi_modal_data": {
+            "image": [cherry_pil_image],
+            "video": [baby_reading_np_ndarrays]
+        },
+        # Only image uuids provided; video missing should raise
+        "multi_modal_uuids": {
+            "image": ["hash_cherry"]
+        },
+    }
+
+    with pytest.raises(ValueError,
+                       match="must be provided if multi_modal_data"):
+        processor.process_inputs(
+            request_id="req-2",
+            prompt=prompt,  # type: ignore[arg-type]
+            params=SamplingParams(),
+        )
+
+
+@pytest.mark.parametrize(
+    "mm_cache_gb, enable_prefix_caching",
+    [
+        (4.0, True),  # default behavior
+        (4.0, False),  # prefix caching disabled
+        (0.0, True),  # processor cache disabled
+    ],
+)
+def test_multi_modal_uuids_accepts_none_and_passes_through(
+        monkeypatch, mm_cache_gb: float, enable_prefix_caching: bool):
+    processor = _mk_processor(monkeypatch,
+                              mm_cache_gb=mm_cache_gb,
+                              enable_prefix_caching=enable_prefix_caching)
+
+    # Capture the overrides passed to InputPreprocessor.preprocess
+    captured: dict[str, object] = {}
+
+    def fake_preprocess(prompt,
+                        *,
+                        tokenization_kwargs=None,
+                        lora_request=None,
+                        mm_hash_overrides=None):
+        captured["mm_hash_overrides"] = mm_hash_overrides
+        # Minimal processed inputs for decoder-only flow
+        return {"type": "token", "prompt_token_ids": [1]}
+
+    # Monkeypatch only the bound preprocess method on this instance
+    monkeypatch.setattr(processor.input_preprocessor,
+                        "preprocess",
+                        fake_preprocess,
+                        raising=True)
+
+    # Use a consistent two-image scenario across all configurations
+    mm_uuids = {"image": [None, "hash_stop"], "video": None}
+    prompt = {
+        "prompt": "USER: <image><image>\nTwo images\nASSISTANT:",
+        "multi_modal_data": {
+            "image": [cherry_pil_image, stop_pil_image],
+            "video": baby_reading_np_ndarrays,
+        },
+        "multi_modal_uuids": mm_uuids,
+    }
+
+    processor.process_inputs(
+        request_id="req-3",
+        prompt=prompt,  # type: ignore[arg-type]
+        params=SamplingParams(),
+    )
+
+    assert captured["mm_hash_overrides"] == mm_uuids
+
+
+def test_multi_modal_uuids_ignored_when_caching_disabled(monkeypatch):
+    # When both processor cache is 0 and prefix caching disabled, the
+    # processor builds overrides from request id instead of using user UUIDs.
+    processor = _mk_processor(monkeypatch,
+                              mm_cache_gb=0.0,
+                              enable_prefix_caching=False)
+
+    captured: dict[str, object] = {}
+
+    def fake_preprocess(prompt,
+                        *,
+                        tokenization_kwargs=None,
+                        lora_request=None,
+                        mm_hash_overrides=None):
+        captured["mm_hash_overrides"] = mm_hash_overrides
+        return {"type": "token", "prompt_token_ids": [1]}
+
+    monkeypatch.setattr(processor.input_preprocessor,
+                        "preprocess",
+                        fake_preprocess,
+                        raising=True)
+
+    request_id = "req-42"
+    mm_uuids = {"image": ["hash_cherry", "hash_stop"], "video": "hash_video"}
+    prompt = {
+        "prompt": "USER: <image><image><video>\nDescribe\nASSISTANT:",
+        "multi_modal_data": {
+            "image": [cherry_pil_image, stop_pil_image],
+            "video": baby_reading_np_ndarrays,
+        },
+        "multi_modal_uuids": mm_uuids,
+    }
+
+    processor.process_inputs(
+        request_id=request_id,
+        prompt=prompt,  # type: ignore[arg-type]
+        params=SamplingParams(),
+    )
+
+    # Expect request-id-based overrides are passed through
+    assert captured["mm_hash_overrides"] == {
+        "image": [f"{request_id}-image-0", f"{request_id}-image-1"],
+        "video": [f"{request_id}-video-0"],
+    }

tests/v1/kv_connector/unit/utils.py

@@ -162,9 +162,7 @@ def create_request(request_id: int,
         prompt_token_ids=prompt_token_ids,
         sampling_params=sampling_params,
         pooling_params=None,
-        multi_modal_kwargs=None,
-        multi_modal_placeholders=None,
-        multi_modal_hashes=None,
+        mm_features=None,
         eos_token_id=EOS_TOKEN_ID,
         block_hasher=get_request_block_hasher(block_size, hash_fn),
     )

tests/v1/test_async_llm_dp.py

@@ -75,9 +75,10 @@ async def generate(
     ],
 )
 @pytest.mark.parametrize("data_parallel_backend", ["mp", "ray"])
+@pytest.mark.parametrize("async_scheduling", [True, False])
 @pytest.mark.asyncio
-async def test_load(output_kind: RequestOutputKind,
-                    data_parallel_backend: str):
+async def test_load(output_kind: RequestOutputKind, data_parallel_backend: str,
+                    async_scheduling: bool):
 
     stats_loggers = {}
 
@@ -105,6 +106,7 @@ async def test_load(output_kind: RequestOutputKind,
         prompt = "This is a test of data parallel"
 
         engine_args.data_parallel_backend = data_parallel_backend
+        engine_args.async_scheduling = async_scheduling
         engine = AsyncLLM.from_engine_args(engine_args,
                                            stat_loggers=[SimpleStatsLogger])
         after.callback(engine.shutdown)

tests/worker/test_model_input.py

@@ -9,10 +9,7 @@ from vllm.attention import AttentionMetadata, AttentionMetadataBuilder
 from vllm.attention.backends.abstract import AttentionBackend
 from vllm.attention.backends.utils import CommonAttentionState
 from vllm.model_executor import SamplingMetadata
-from vllm.model_executor.pooling_metadata import PoolingMetadata
 from vllm.worker.model_runner import ModelInputForGPUWithSamplingMetadata
-from vllm.worker.pooling_model_runner import (
-    ModelInputForGPUWithPoolingMetadata)
 
 
 class MockAttentionBackend(AttentionBackend):
@@ -114,54 +111,3 @@ def test_model_runner_input():
     assert (received_model_input.sampling_metadata.selected_token_indices ==
             sampling_metadata.selected_token_indices)
     assert received_model_input.sampling_metadata.seq_groups is None
-
-
-def test_embedding_model_runner_input():
-    pooling_metadata = PoolingMetadata(
-        seq_groups=[[0]],
-        seq_data={},
-        prompt_lens=[1],
-    )
-    attn_metadata = AttentionMetadata(
-        num_prefills=1,
-        num_prefill_tokens=2,
-        num_decode_tokens=3,
-        slot_mapping=torch.zeros(1),
-        multi_modal_placeholder_index_maps=None,
-        enable_kv_scales_calculation=True,
-    )
-    model_input = ModelInputForGPUWithPoolingMetadata(
-        input_tokens=torch.ones(10),
-        input_positions=torch.ones(10),
-        pooling_metadata=pooling_metadata,
-        attn_metadata=attn_metadata)
-
-    assert isinstance(model_input, ModelInputForGPUWithPoolingMetadata)
-
-    # Test round trip serialization.
-    tensor_dict = model_input.as_broadcastable_tensor_dict()
-    attn_backend = MockAttentionBackend()
-    received_model_input = (
-        ModelInputForGPUWithPoolingMetadata.from_broadcasted_tensor_dict(
-            tensor_dict, attn_backend=attn_backend))
-    # Check that received copy has correct values.
-    assert isinstance(received_model_input,
-                      ModelInputForGPUWithPoolingMetadata)
-    assert received_model_input.input_tokens is not None
-    assert (
-        received_model_input.input_tokens == model_input.input_tokens).all()
-    assert received_model_input.input_positions is not None
-    assert (received_model_input.input_positions == model_input.input_positions
-            ).all()
-    assert received_model_input.multi_modal_kwargs is None
-    assert (received_model_input.multi_modal_kwargs ==
-            model_input.multi_modal_kwargs)
-    assert received_model_input.lora_requests is None
-    assert received_model_input.lora_requests == model_input.lora_requests
-    assert received_model_input.lora_mapping is None
-    assert received_model_input.lora_mapping == model_input.lora_mapping
-    for field in dataclasses.fields(AttentionMetadata):
-        assert getattr(received_model_input.attn_metadata, field.name,
-                       None) == getattr(attn_metadata, field.name, None)
-    # Pooling metadata is not broadcast.
-    assert received_model_input.pooling_metadata is None

vllm/assets/image.py

@@ -11,7 +11,7 @@ from .base import get_vllm_public_assets
 
 VLM_IMAGES_DIR = "vision_model_images"
 
-ImageAssetName = Literal["stop_sign", "cherry_blossom"]
+ImageAssetName = Literal["stop_sign", "cherry_blossom", "hato"]
 
 
 @dataclass(frozen=True)

vllm/compilation/activation_quant_fusion.py

@@ -1,55 +1,155 @@
 # SPDX-License-Identifier: Apache-2.0
 # SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
+from abc import ABC, abstractmethod
+
 import torch
 from torch._higher_order_ops.auto_functionalize import auto_functionalized
 from torch._inductor.pattern_matcher import (PatternMatcherPass, fwd_only,
                                              register_replacement)
+from torch._ops import OpOverload
 
 from vllm.config import VllmConfig
 from vllm.logger import init_logger
+from vllm.model_executor.layers.quantization.utils.quant_utils import (
+    QuantKey, kFp8StaticTensorSym, kNvfp4Quant, kStaticTensorScale)
 from vllm.platforms import current_platform
 
+from .fusion import QUANT_OPS, empty_bf16, empty_fp32, empty_i32
 from .inductor_pass import enable_fake_mode
 from .vllm_inductor_pass import VllmInductorPass
 
 logger = init_logger(__name__)
 
+FP8_DTYPE = current_platform.fp8_dtype()
+FP4_DTYPE = torch.uint8
 
-def silu_mul_pattern_static(result: torch.Tensor,
-                            result_silu_mul: torch.Tensor, input: torch.Tensor,
-                            scale: torch.Tensor):
-    at1 = auto_functionalized(torch.ops._C.silu_and_mul.default,
+SILU_MUL_OP = torch.ops._C.silu_and_mul.default
+
+FUSED_OPS: dict[QuantKey, OpOverload] = {
+    kFp8StaticTensorSym: torch.ops._C.silu_and_mul_quant.default,  # noqa: E501
+}
+silu_and_mul_nvfp4_quant_supported = (current_platform.is_cuda() and hasattr(
+    torch.ops._C, "silu_and_mul_nvfp4_quant"))
+if silu_and_mul_nvfp4_quant_supported:
+    FUSED_OPS[
+        kNvfp4Quant] = torch.ops._C.silu_and_mul_nvfp4_quant.default  # noqa: E501
+
+
+class ActivationQuantPattern(ABC):
+    """
+    The base class for Activation+Quant fusions.
+    Should not be used directly.
+    """
+
+    def __init__(
+        self,
+        quant_key: QuantKey,
+    ):
+        self.quant_key = quant_key
+        self.quant_dtype = quant_key.dtype
+
+        assert self.quant_key in QUANT_OPS, \
+            f"unsupported quantization scheme {self.quant_key}"
+        self.QUANT_OP = QUANT_OPS[self.quant_key]
+
+        assert self.quant_key in FUSED_OPS, \
+            f"unsupported fusion scheme {self.quant_key}"
+        self.FUSED_OP = FUSED_OPS[self.quant_key]
+
+    def empty_quant(self, *args, **kwargs):
+        kwargs = {'dtype': self.quant_dtype, 'device': "cuda", **kwargs}
+        return torch.empty(*args, **kwargs)
+
+    @abstractmethod
+    def register(self, pm_pass: PatternMatcherPass):
+        raise NotImplementedError
+
+
+class SiluMulFp8StaticQuantPattern(ActivationQuantPattern):
+    """
+    Fusion for SiluMul+Fp8StaticQuant Pattern
+    """
+
+    def __init__(self, symmetric: bool = True):
+        quant_key = QuantKey(dtype=FP8_DTYPE,
+                             scale=kStaticTensorScale,
+                             symmetric=symmetric)
+        super().__init__(quant_key)
+
+    def register(self, pm_pass: PatternMatcherPass):
+
+        def pattern(result: torch.Tensor, result_silu_mul: torch.Tensor,
+                    input: torch.Tensor, scale: torch.Tensor):
+            at1 = auto_functionalized(SILU_MUL_OP,
                                       result=result_silu_mul,
                                       input=input)
-    at2 = auto_functionalized(torch.ops._C.static_scaled_fp8_quant.default,
+            at2 = auto_functionalized(self.QUANT_OP,
                                       result=result,
                                       input=at1[1],
                                       scale=scale)
             return at2[1]
 
-
-def silu_mul_replacement_static(result: torch.Tensor,
-                                result_silu_mul: torch.Tensor,
+        def replacement(result: torch.Tensor, result_silu_mul: torch.Tensor,
                         input: torch.Tensor, scale: torch.Tensor):
-    at = auto_functionalized(torch.ops._C.silu_and_mul_quant.default,
+            at = auto_functionalized(self.FUSED_OP,
                                      result=result,
                                      input=input,
                                      scale=scale)
             return at[1]
 
+        inputs = [
+            self.empty_quant(5, 4),  # result
+            empty_bf16(5, 4),  # result_silu_mul
+            empty_bf16(5, 4),  # input
+            empty_fp32(1, 1)  # scale
+        ]
 
-def empty_bf16(*args, **kwargs):
-    return torch.empty(*args, **kwargs, dtype=torch.bfloat16, device="cuda")
+        register_replacement(pattern, replacement, inputs, fwd_only, pm_pass)
 
 
-def empty_fp8(*args, **kwargs):
-    fp8 = current_platform.fp8_dtype()
-    return torch.empty(*args, **kwargs, dtype=fp8, device="cuda")
+class SiluMulNvfp4QuantPattern(ActivationQuantPattern):
+    """
+    Fusion for SiluMul+Nvfp4Quant Pattern
+    """
 
+    def __init__(self):
+        super().__init__(kNvfp4Quant)
 
-def empty_fp32(*args, **kwargs):
-    return torch.empty(*args, **kwargs, dtype=torch.float32, device="cuda")
+    def register(self, pm_pass: PatternMatcherPass):
+
+        def pattern(result: torch.Tensor, output_scale: torch.Tensor,
+                    result_silu_mul: torch.Tensor, input: torch.Tensor,
+                    scale: torch.Tensor):
+            at1 = auto_functionalized(SILU_MUL_OP,
+                                      result=result_silu_mul,
+                                      input=input)
+            at2 = auto_functionalized(self.QUANT_OP,
+                                      output=result,
+                                      input=at1[1],
+                                      output_scale=output_scale,
+                                      input_scale=scale)
+            return at2[1], at2[2]
+
+        def replacement(result: torch.Tensor, output_scale: torch.Tensor,
+                        result_silu_mul: torch.Tensor, input: torch.Tensor,
+                        scale: torch.Tensor):
+            at = auto_functionalized(self.FUSED_OP,
+                                     result=result,
+                                     result_block_scale=output_scale,
+                                     input=input,
+                                     input_global_scale=scale)
+            return at[1], at[2]
+
+        inputs = [
+            self.empty_quant(5, 32),  # result
+            empty_i32(128, 4),  # output_scale
+            empty_bf16(5, 64),  # result_silu_mul
+            empty_bf16(5, 64),  # input
+            empty_fp32(1, 1)  # scale
+        ]
+
+        register_replacement(pattern, replacement, inputs, fwd_only, pm_pass)
 
 
 class ActivationQuantFusionPass(VllmInductorPass):
@@ -69,15 +169,12 @@ class ActivationQuantFusionPass(VllmInductorPass):
         self.patterns: PatternMatcherPass = PatternMatcherPass(
             pass_name="activation_quant_fusion_pass")
 
-        inputs = [
-            empty_fp8(5, 4),  # Quant output
-            empty_bf16(5, 4),  # Silu_and_mul output
-            empty_bf16(5, 4),  # Input
-            empty_fp32(1, 1)  # Scale
-        ]
-        register_replacement(silu_mul_pattern_static,
-                             silu_mul_replacement_static, inputs, fwd_only,
-                             self.patterns)
+        pattern_silu_mul_fp8 = SiluMulFp8StaticQuantPattern()
+        pattern_silu_mul_fp8.register(self.patterns)
+
+        if silu_and_mul_nvfp4_quant_supported:
+            pattern_silu_mul_nvfp4 = SiluMulNvfp4QuantPattern()
+            pattern_silu_mul_nvfp4.register(self.patterns)
 
     def __call__(self, graph: torch.fx.Graph):
         self.begin()
@@ -89,3 +186,8 @@ class ActivationQuantFusionPass(VllmInductorPass):
 
         self.dump_graph(graph, "after_act_quant_fusion")
         self.end_and_log()
+
+    def uuid(self):
+        return VllmInductorPass.hash_source(self, ActivationQuantPattern,
+                                            SiluMulFp8StaticQuantPattern,
+                                            SiluMulNvfp4QuantPattern)

vllm/compilation/fix_functionalization.py

@@ -97,6 +97,15 @@ class FixFunctionalizationPass(VllmInductorPass):
                                      node,
                                      mutated_args,
                                      args=('result', 'input', 'scale'))
+            elif hasattr(
+                    torch.ops._C, "silu_and_mul_nvfp4_quant"
+            ) and at_target == torch.ops._C.silu_and_mul_nvfp4_quant.default:
+                mutated_args = {1: 'result', 2: 'result_block_scale'}
+                self.defunctionalize(graph,
+                                     node,
+                                     mutated_args,
+                                     args=('result', 'result_block_scale',
+                                           'input', 'input_global_scale'))
             else:
                 continue  # skip the count
 

vllm/compilation/monitor.py

@@ -43,7 +43,7 @@ cudagraph_capturing_enabled: bool = True
 
 
 def validate_cudagraph_capturing_enabled():
-    # used to monitor whether an cudagraph capturing is legal at runtime.
+    # used to monitor whether a cudagraph capturing is legal at runtime.
     # should be called before any cudagraph capturing.
     # if an illegal cudagraph capturing happens, raise an error.
     global cudagraph_capturing_enabled

vllm/compilation/pass_manager.py

@@ -8,13 +8,13 @@ from vllm.logger import init_logger
 from vllm.platforms import current_platform
 
 if current_platform.is_cuda_alike():
+    from .activation_quant_fusion import ActivationQuantFusionPass
     from .fusion import FusionPass
     from .fusion_attn import AttnFusionPass
 
 if current_platform.is_cuda():
     from .collective_fusion import AllReduceFusionPass, AsyncTPPass
 
-from .activation_quant_fusion import ActivationQuantFusionPass
 from .fix_functionalization import FixFunctionalizationPass
 from .inductor_pass import CustomGraphPass, InductorPass, get_pass_context
 from .noop_elimination import NoOpEliminationPass

vllm/config/cache.py

@@ -145,12 +145,19 @@ class CacheConfig:
 
         self._verify_cache_dtype()
         self._verify_prefix_caching()
+        self._verify_kv_sharing_fast_prefill()
 
     def metrics_info(self):
         # convert cache_config to dict(key: str, value: str) for prometheus
         # metrics info
         return {key: str(value) for key, value in self.__dict__.items()}
 
+    def _verify_kv_sharing_fast_prefill(self) -> None:
+        if self.kv_sharing_fast_prefill and not envs.VLLM_USE_V1:
+            raise NotImplementedError(
+                "Fast prefill optimization for KV sharing is not supported "
+                "in V0 currently.")
+
     @model_validator(mode='after')
     def _verify_args(self) -> Self:
         if self.cpu_offload_gb < 0:
@@ -162,11 +169,6 @@ class CacheConfig:
                 "GPU memory utilization must be less than 1.0. Got "
                 f"{self.gpu_memory_utilization}.")
 
-        if self.kv_sharing_fast_prefill:
-            logger.warning_once(
-                "--kv-sharing-fast-prefill is currently work in progress "
-                "and not functional yet (i.e. no prefill savings)")
-
         return self
 
     def _verify_cache_dtype(self) -> None:

vllm/core/evictor.py

@@ -76,7 +76,7 @@ class LRUEvictor(Evictor):
     that's recorded in the Block. If there are multiple blocks with
     the same last_accessed time, then the one with the largest num_hashed_tokens
     will be evicted. If two blocks each have the lowest last_accessed time and
-    highest num_hashed_tokens value, then one will be chose arbitrarily
+    highest num_hashed_tokens value, then one will be chosen arbitrarily
     """
 
     # CLEANUP_THRESHOLD determines the maximum allowable size of the priority

vllm/core/scheduler.py

@@ -1591,7 +1591,6 @@ class Scheduler:
                     encoder_seq_data=encoder_seq_data,
                     cross_block_table=cross_block_table,
                     state=seq_group.state,
-                    token_type_ids=seq_group.token_type_ids,
                     # `multi_modal_data` will only be present for the 1st comm
                     # between engine and worker.
                     # the subsequent comms can still use delta, but

vllm/distributed/device_communicators/xpu_communicator.py

@@ -7,8 +7,13 @@ import torch
 import torch.distributed as dist
 from torch.distributed import ProcessGroup
 
+import vllm.envs as envs
+from vllm.logger import init_logger
+
 from .base_device_communicator import DeviceCommunicatorBase
 
+logger = init_logger(__name__)
+
 
 class XpuCommunicator(DeviceCommunicatorBase):
 
@@ -18,6 +23,12 @@ class XpuCommunicator(DeviceCommunicatorBase):
                  device_group: Optional[ProcessGroup] = None,
                  unique_name: str = ""):
         super().__init__(cpu_group, device, device_group, unique_name)
+        if self.use_all2all:
+            all2all_backend = envs.VLLM_ALL2ALL_BACKEND
+            if all2all_backend == "naive":
+                from .all2all import NaiveAll2AllManager
+                self.all2all_manager = NaiveAll2AllManager(self.cpu_group)
+                logger.info("Using naive all2all manager.")
 
     def all_reduce(self, input_) -> torch.Tensor:
         dist.all_reduce(input_, group=self.device_group)

vllm/distributed/eplb/eplb_state.py

@@ -409,12 +409,14 @@ class EplbState:
             self.expert_rearrangement_step = 0
             self.rearrange(model)
 
-    def rearrange(self,
+    def rearrange(
+        self,
         model: MixtureOfExperts,
         is_profile: bool = False,
         execute_shuffle: bool = True,
         global_expert_load: Optional[torch.Tensor] = None,
-                  rank_mapping: Optional[dict[int, int]] = None) -> None:
+        rank_mapping: Optional[dict[int,
+                                    int]] = None) -> Optional[torch.Tensor]:
         """
         Rearrange the experts according to the current load.
         """
@@ -548,6 +550,7 @@ class EplbState:
                 " (profile) " if is_profile else " ",
                 time_end - time_start,
             )
+        return None
 
     @staticmethod
     def recv_state() -> tuple[torch.Tensor, torch.Tensor]:

vllm/engine/arg_utils.py

@@ -1566,8 +1566,7 @@ class EngineArgs:
                 use_spec_decode = self.speculative_config is not None
 
                 if (is_gpu and not use_sliding_window and not use_spec_decode
-                        and not self.enable_lora
-                        and model_config.runner_type != "pooling"):
+                        and not self.enable_lora):
                     self.enable_chunked_prefill = True
                     logger.warning(
                         "Chunked prefill is enabled by default for models "
@@ -1585,10 +1584,6 @@ class EngineArgs:
                 "OOM during the initial memory profiling phase, or result "
                 "in low performance due to small KV cache size. Consider "
                 "setting --max-model-len to a smaller value.", max_model_len)
-        elif (self.enable_chunked_prefill
-              and model_config.runner_type == "pooling"):
-            msg = "Chunked prefill is not supported for pooling models"
-            raise ValueError(msg)
 
         # if using prefix caching, we must set a hash algo
         if self.enable_prefix_caching:

vllm/engine/async_llm_engine.py

@@ -72,8 +72,8 @@ STOP_ITERATION = Exception()  # Sentinel
 
 
 class AsyncStream:
-    """A stream of RequestOutputs or PoolingRequestOutputs for a request
-    that can be iterated over asynchronously via an async generator."""
+    """A stream of RequestOutputs for a request that can be iterated over
+    asynchronously via an async generator."""
 
     def __init__(self, request_id: str, cancel: Callable[[str], None]) -> None:
         self.request_id = request_id
@@ -81,8 +81,7 @@ class AsyncStream:
         self._queue: asyncio.Queue = asyncio.Queue()
         self._finished = False
 
-    def put(self, item: Union[RequestOutput, PoolingRequestOutput,
-                              Exception]) -> None:
+    def put(self, item: Union[RequestOutput, Exception]) -> None:
         if not self._finished:
             self._queue.put_nowait(item)
 
@@ -99,9 +98,7 @@ class AsyncStream:
     def finished(self) -> bool:
         return self._finished
 
-    async def generator(
-        self
-    ) -> AsyncGenerator[Union[RequestOutput, PoolingRequestOutput], None]:
+    async def generator(self) -> AsyncGenerator[RequestOutput, None]:
         try:
             while True:
                 result = await self._queue.get()
@@ -151,8 +148,7 @@ class RequestTracker:
                 self.abort_request(rid, exception=exc)
 
     def process_request_output(self,
-                               request_output: Union[RequestOutput,
-                                                     PoolingRequestOutput],
+                               request_output: RequestOutput,
                                *,
                                verbose: bool = False) -> None:
         """Process a request output from the engine."""
@@ -261,9 +257,7 @@ class _AsyncLLMEngine(LLMEngine):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
 
-    async def step_async(
-        self, virtual_engine: int
-    ) -> List[Union[RequestOutput, PoolingRequestOutput]]:
+    async def step_async(self, virtual_engine: int) -> List[RequestOutput]:
         """Performs one decoding iteration and returns newly generated results.
         The workers are ran asynchronously if possible.
 
@@ -405,7 +399,7 @@ class _AsyncLLMEngine(LLMEngine):
         self,
         request_id: str,
         prompt: PromptType,
-        params: Union[SamplingParams, PoolingParams],
+        params: SamplingParams,
         arrival_time: Optional[float] = None,
         lora_request: Optional[LoRARequest] = None,
         trace_headers: Optional[Mapping[str, str]] = None,
@@ -779,14 +773,14 @@ class AsyncLLMEngine(EngineClient):
         self,
         request_id: str,
         prompt: PromptType,
-        params: Union[SamplingParams, PoolingParams],
+        params: SamplingParams,
         arrival_time: Optional[float] = None,
         lora_request: Optional[LoRARequest] = None,
         trace_headers: Optional[Mapping[str, str]] = None,
         priority: int = 0,
         data_parallel_rank: Optional[int] = None,
         tokenization_kwargs: Optional[dict[str, Any]] = None,
-    ) -> AsyncGenerator[Union[RequestOutput, PoolingRequestOutput], None]:
+    ) -> AsyncGenerator[RequestOutput, None]:
         if not self.is_running:
             if self.start_engine_loop:
                 self.start_background_loop()
@@ -908,7 +902,7 @@ class AsyncLLMEngine(EngineClient):
             await self.abort(request_id)
             raise
 
-    async def encode(
+    def encode(
         self,
         prompt: PromptType,
         pooling_params: PoolingParams,
@@ -918,85 +912,8 @@ class AsyncLLMEngine(EngineClient):
         priority: int = 0,
         tokenization_kwargs: Optional[dict[str, Any]] = None,
     ) -> AsyncGenerator[PoolingRequestOutput, None]:
-        """Generate outputs for a request from a pooling model.
-
-        Generate outputs for a request. This method is a coroutine. It adds the
-        request into the waiting queue of the LLMEngine and streams the outputs
-        from the LLMEngine to the caller.
-
-        Args:
-            prompt: The prompt to the LLM. See
-                [`PromptType`][vllm.inputs.PromptType] for more details about
-                the format of each input.
-            pooling_params: The pooling parameters of the request.
-            request_id: The unique id of the request.
-            lora_request: LoRA request to use for generation, if any.
-            trace_headers: OpenTelemetry trace headers.
-            priority: The priority of the request.
-                Only applicable with priority scheduling.
-
-        Yields:
-            The output `PoolingRequestOutput` objects from the LLMEngine
-            for the request.
-
-        Details:
-            - If the engine is not running, start the background loop,
-                which iteratively invokes
-                [`vllm.engine.async_llm_engine.AsyncLLMEngine.engine_step`][]
-                to process the waiting requests.
-            - Add the request to the engine's `RequestTracker`.
-                On the next background loop, this request will be sent to
-                the underlying engine.
-                Also, a corresponding `AsyncStream` will be created.
-            - Wait for the request outputs from `AsyncStream` and yield them.
-
-        Example:
-        ```
-        # Please refer to entrypoints/api_server.py for
-        # the complete example.
-
-        # initialize the engine and the example input
-        # note that engine_args here is AsyncEngineArgs instance
-        engine = AsyncLLMEngine.from_engine_args(engine_args)
-        example_input = {
-            "input": "What is LLM?",
-            "request_id": 0,
-        }
-
-        # start the generation
-        results_generator = engine.encode(
-        example_input["input"],
-        PoolingParams(),
-        example_input["request_id"])
-
-        # get the results
-        final_output = None
-        async for request_output in results_generator:
-            if await request.is_disconnected():
-                # Abort the request if the client disconnects.
-                await engine.abort(request_id)
-                # Return or raise an error
-                ...
-            final_output = request_output
-
-        # Process and return the final output
-        ...
-        ```
-        """
-        try:
-            async for output in await self.add_request(
-                    request_id,
-                    prompt,
-                    pooling_params,
-                    lora_request=lora_request,
-                    trace_headers=trace_headers,
-                    priority=priority,
-                    tokenization_kwargs=tokenization_kwargs,
-            ):
-                yield LLMEngine.validate_output(output, PoolingRequestOutput)
-        except asyncio.CancelledError:
-            await self.abort(request_id)
-            raise
+        raise NotImplementedError(
+            "Pooling models are not supported in vLLM V0")
 
     async def abort(self, request_id: Union[str, Iterable[str]]) -> None:
         """Abort a request.
@@ -1104,8 +1021,8 @@ class AsyncLLMEngine(EngineClient):
     async def is_sleeping(self) -> bool:
         return self.engine.is_sleeping()
 
-    async def add_lora(self, lora_request: LoRARequest) -> None:
-        self.engine.add_lora(lora_request)
+    async def add_lora(self, lora_request: LoRARequest) -> bool:
+        return self.engine.add_lora(lora_request)
 
     async def collective_rpc(self,
                              method: str,

vllm/engine/llm_engine.py

@@ -40,12 +40,11 @@ from vllm.multimodal.cache import processor_only_cache_from_config
 from vllm.multimodal.processing import EncDecMultiModalProcessor
 from vllm.outputs import (PoolingRequestOutput, RequestOutput,
                           RequestOutputFactory)
-from vllm.pooling_params import PoolingParams
 from vllm.sampling_params import RequestOutputKind, SamplingParams
 from vllm.sequence import (ExecuteModelRequest, ParallelSampleSequenceGroup,
-                           PoolingSequenceGroupOutput, Sequence, SequenceGroup,
-                           SequenceGroupBase, SequenceGroupMetadata,
-                           SequenceGroupOutput, SequenceStatus)
+                           Sequence, SequenceGroup, SequenceGroupBase,
+                           SequenceGroupMetadata, SequenceGroupOutput,
+                           SequenceStatus)
 from vllm.tracing import (SpanAttributes, SpanKind, extract_trace_context,
                           init_tracer)
 from vllm.transformers_utils.detokenizer import Detokenizer
@@ -93,8 +92,7 @@ class SchedulerContext:
 
     def __init__(self) -> None:
         self.output_queue: Deque[OutputData] = deque()
-        self.request_outputs: List[Union[RequestOutput,
-                                         PoolingRequestOutput]] = []
+        self.request_outputs: List[RequestOutput] = []
         self.seq_group_metadata_list: Optional[
             List[SequenceGroupMetadata]] = None
         self.scheduler_outputs: Optional[SchedulerOutputs] = None
@@ -261,7 +259,6 @@ class LLMEngine:
 
         self.model_executor = executor_class(vllm_config=vllm_config)
 
-        if self.model_config.runner_type != "pooling":
         self._initialize_kv_caches()
 
         # If usage stat is enabled, collect relevant info.
@@ -541,7 +538,7 @@ class LLMEngine:
         self,
         request_id: str,
         processed_inputs: ProcessorInputs,
-        params: Union[SamplingParams, PoolingParams],
+        params: SamplingParams,
         arrival_time: float,
         lora_request: Optional[LoRARequest],
         trace_headers: Optional[Mapping[str, str]] = None,
@@ -577,7 +574,7 @@ class LLMEngine:
         encoder_seq = (None if encoder_inputs is None else Sequence(
             seq_id, encoder_inputs, block_size, eos_token_id, lora_request))
 
-        # Create a SequenceGroup based on SamplingParams or PoolingParams
+        # Create a SequenceGroup based on SamplingParams
         if isinstance(params, SamplingParams):
             seq_group = self._create_sequence_group_with_sampling(
                 request_id,
@@ -588,18 +585,8 @@ class LLMEngine:
                 trace_headers=trace_headers,
                 encoder_seq=encoder_seq,
                 priority=priority)
-        elif isinstance(params, PoolingParams):
-            seq_group = self._create_sequence_group_with_pooling(
-                request_id,
-                seq,
-                params,
-                arrival_time=arrival_time,
-                lora_request=lora_request,
-                encoder_seq=encoder_seq,
-                priority=priority)
         else:
-            raise ValueError(
-                "Either SamplingParams or PoolingParams must be provided.")
+            raise ValueError("SamplingParams must be provided.")
 
         # Add the sequence group to the scheduler with least unfinished seqs.
         costs = [
@@ -618,7 +605,7 @@ class LLMEngine:
         self,
         request_id: str,
         prompt: PromptType,
-        params: Union[SamplingParams, PoolingParams],
+        params: SamplingParams,
         arrival_time: Optional[float] = None,
         lora_request: Optional[LoRARequest] = None,
         tokenization_kwargs: Optional[dict[str, Any]] = None,
@@ -636,9 +623,8 @@ class LLMEngine:
             prompt: The prompt to the LLM. See
                 [PromptType][vllm.inputs.PromptType]
                 for more details about the format of each input.
-            params: Parameters for sampling or pooling.
+            params: Parameters for sampling.
                 [SamplingParams][vllm.SamplingParams] for text generation.
-                [PoolingParams][vllm.PoolingParams] for pooling.
             arrival_time: The arrival time of the request. If None, we use
                 the current monotonic time.
             lora_request: The LoRA request to add.
@@ -760,29 +746,6 @@ class LLMEngine:
 
         return seq_group
 
-    def _create_sequence_group_with_pooling(
-        self,
-        request_id: str,
-        seq: Sequence,
-        pooling_params: PoolingParams,
-        arrival_time: float,
-        lora_request: Optional[LoRARequest],
-        encoder_seq: Optional[Sequence] = None,
-        priority: int = 0,
-    ) -> SequenceGroup:
-        """Creates a SequenceGroup with PoolingParams."""
-        # Defensive copy of PoolingParams, which are used by the pooler
-        pooling_params = pooling_params.clone()
-        # Create the sequence group.
-        seq_group = SequenceGroup(request_id=request_id,
-                                  seqs=[seq],
-                                  arrival_time=arrival_time,
-                                  lora_request=lora_request,
-                                  pooling_params=pooling_params,
-                                  encoder_seq=encoder_seq,
-                                  priority=priority)
-        return seq_group
-
     def abort_request(self, request_id: Union[str, Iterable[str]]) -> None:
         """Aborts a request(s) with the given ID.
 
@@ -856,18 +819,6 @@ class LLMEngine:
             success = success and scheduler.reset_prefix_cache(device)
         return success
 
-    @staticmethod
-    def _process_sequence_group_outputs(
-        seq_group: SequenceGroup,
-        outputs: List[PoolingSequenceGroupOutput],
-    ) -> None:
-        seq_group.pooled_data = outputs[0].data
-
-        for seq in seq_group.get_seqs():
-            seq.status = SequenceStatus.FINISHED_STOPPED
-
-        return
-
     def _process_model_outputs(self,
                                ctx: SchedulerContext,
                                request_id: Optional[str] = None) -> None:
@@ -962,13 +913,10 @@ class LLMEngine:
                             seq_group.metrics.model_execute_time = (
                                 o.model_execute_time)
 
-            if self.model_config.runner_type == "pooling":
-                self._process_sequence_group_outputs(seq_group, output)
-            else:
             self.output_processor.process_prompt_logprob(seq_group, output)
             if seq_group_meta.do_sample:
-                    self.output_processor.process_outputs(
-                        seq_group, output, is_async)
+                self.output_processor.process_outputs(seq_group, output,
+                                                      is_async)
 
             if seq_group.is_finished():
                 finished_now.append(i)
@@ -1090,7 +1038,7 @@ class LLMEngine:
                 seq.append_token_id(sample.output_token, sample.logprobs,
                                     sample.output_embed)
 
-    def step(self) -> List[Union[RequestOutput, PoolingRequestOutput]]:
+    def step(self) -> List[RequestOutput]:
         """Performs one decoding iteration and returns newly generated results.
 
         <figure markdown="span">

vllm/engine/multiprocessing/__init__.py

@@ -120,6 +120,7 @@ class RPCLoadAdapterRequest:
 @dataclass
 class RPCAdapterLoadedResponse:
     request_id: str
+    lora_loaded: bool
 
 
 RPC_REQUEST_T = Union[RPCProcessRequest, RPCAbortRequest, RPCStartupRequest,

vllm/engine/multiprocessing/client.py

@@ -6,7 +6,7 @@ import copy
 import pickle
 from contextlib import contextmanager, suppress
 from typing import (Any, AsyncGenerator, Dict, Iterable, Iterator, List,
-                    Mapping, Optional, Union, cast)
+                    Mapping, Optional, Union)
 
 import cloudpickle
 import psutil
@@ -477,10 +477,8 @@ class MQLLMEngineClient(EngineClient):
                 Any priority other than 0 will lead to an error if the
                 scheduling policy is not "priority".
         """
-        return cast(
-            AsyncGenerator[RequestOutput, None],
-            self._process_request(prompt, sampling_params, request_id,
-                                  lora_request, trace_headers, priority))
+        return self._process_request(prompt, sampling_params, request_id,
+                                     lora_request, trace_headers, priority)
 
     def encode(
         self,
@@ -490,45 +488,20 @@ class MQLLMEngineClient(EngineClient):
         lora_request: Optional[LoRARequest] = None,
         trace_headers: Optional[Mapping[str, str]] = None,
         priority: int = 0,
+        tokenization_kwargs: Optional[dict[str, Any]] = None,
     ) -> AsyncGenerator[PoolingRequestOutput, None]:
-        """Generate outputs for a request from a pooling model.
-
-        Generate outputs for a request. This method is a coroutine. It adds the
-        request into the waiting queue of the LLMEngine and streams the outputs
-        from the LLMEngine to the caller.
-
-        Args:
-            prompt: The prompt to the LLM. See
-                [`PromptType`][vllm.inputs.PromptType] for more details about
-                the format of each input.
-            pooling_params: The pooling parameters of the request.
-            request_id: The unique id of the request.
-            lora_request: LoRA request to use for generation, if any.
-            trace_headers: OpenTelemetry trace headers.
-
-        Yields:
-            The output `PoolingRequestOutput` objects from the LLMEngine
-            for the request.
-        """
-        return cast(
-            AsyncGenerator[PoolingRequestOutput, None],
-            self._process_request(prompt,
-                                  pooling_params,
-                                  request_id,
-                                  lora_request,
-                                  trace_headers,
-                                  priority=priority))
+        raise NotImplementedError(
+            "Pooling models are not supported in vLLM V0")
 
     async def _process_request(
         self,
         prompt: PromptType,
-        params: Union[SamplingParams, PoolingParams],
+        params: SamplingParams,
         request_id: str,
         lora_request: Optional[LoRARequest] = None,
         trace_headers: Optional[Mapping[str, str]] = None,
         priority: int = 0,
-    ) -> Union[AsyncGenerator[RequestOutput, None], AsyncGenerator[
-            PoolingRequestOutput, None]]:
+    ) -> AsyncGenerator[RequestOutput, None]:
         """Send an RPCGenerateRequest to the RPCServer and stream responses."""
 
         # If already dead, error out.
@@ -547,7 +520,7 @@ class MQLLMEngineClient(EngineClient):
         try:
             # 2) Detach logits processors so that they can be pickled
             # separately (may require cloudpickle which is slower)
-            if isinstance(params, SamplingParams) and params.logits_processors:
+            if params.logits_processors:
                 # Defensive shallow copy
                 params = copy.copy(params)
                 logits_processors = params.logits_processors
@@ -646,13 +619,14 @@ class MQLLMEngineClient(EngineClient):
             raise request_output
         return request_output.is_sleeping
 
-    async def add_lora(self, lora_request: LoRARequest) -> None:
+    async def add_lora(self, lora_request: LoRARequest) -> bool:
         """Load a new LoRA adapter into the engine for future requests."""
         # Uses the same I/O as generate requests
         request = RPCLoadAdapterRequest(lora_request)
 
         # Create output queue for this request.
-        queue: asyncio.Queue[Union[None, BaseException]] = asyncio.Queue()
+        queue: asyncio.Queue[Union[
+            BaseException, RPCAdapterLoadedResponse]] = asyncio.Queue()
         self.output_queues[request.request_id] = queue
 
         # Send the request
@@ -666,3 +640,4 @@ class MQLLMEngineClient(EngineClient):
         # Raise on error, otherwise happily return None
         if isinstance(request_output, BaseException):
             raise request_output
+        return request_output.lora_loaded

vllm/engine/multiprocessing/engine.py

@@ -347,7 +347,7 @@ class MQLLMEngine:
 
     def _handle_load_adapter_request(self, request: RPCLoadAdapterRequest):
         try:
-            self.engine.add_lora(request.lora_request)
+            lora_loaded = self.engine.add_lora(request.lora_request)
         except BaseException as e:
             # Send back an error if the adater fails to load
             rpc_err = RPCError(request_id=request.request_id,
@@ -357,7 +357,8 @@ class MQLLMEngine:
             return
         # Otherwise, send back the successful load message
         self._send_outputs(
-            RPCAdapterLoadedResponse(request_id=request.request_id))
+            RPCAdapterLoadedResponse(request_id=request.request_id,
+                                     lora_loaded=lora_loaded))
 
     def _handle_is_sleeping_request(self, request: RPCIsSleepingRequest):
         is_sleeping = self.is_sleeping()

vllm/engine/protocol.py

@@ -3,7 +3,7 @@
 
 import asyncio
 from abc import ABC, abstractmethod
-from typing import AsyncGenerator, Iterable, Mapping, Optional, Union
+from typing import Any, AsyncGenerator, Iterable, Mapping, Optional, Union
 
 from vllm.beam_search import BeamSearchSequence, create_sort_beams_key_function
 from vllm.config import DecodingConfig, ModelConfig, VllmConfig
@@ -224,6 +224,7 @@ class EngineClient(ABC):
         lora_request: Optional[LoRARequest] = None,
         trace_headers: Optional[Mapping[str, str]] = None,
         priority: int = 0,
+        tokenization_kwargs: Optional[dict[str, Any]] = None,
     ) -> AsyncGenerator[PoolingRequestOutput, None]:
         """Generate outputs for a request from a pooling model."""
         ...
@@ -320,7 +321,7 @@ class EngineClient(ABC):
         ...
 
     @abstractmethod
-    async def add_lora(self, lora_request: LoRARequest) -> None:
+    async def add_lora(self, lora_request: LoRARequest) -> bool:
         """Load a new LoRA adapter into the engine for future requests."""
         ...
 

vllm/entrypoints/llm.py

@@ -51,7 +51,7 @@ from vllm.tasks import PoolingTask
 from vllm.transformers_utils.tokenizer import (AnyTokenizer, MistralTokenizer,
                                                get_cached_tokenizer)
 from vllm.usage.usage_lib import UsageContext
-from vllm.utils import Counter, Device, is_list_of
+from vllm.utils import Counter, Device, as_iter, is_list_of
 from vllm.v1.sample.logits_processor import LogitsProcessor
 
 if TYPE_CHECKING:
@@ -329,7 +329,7 @@ class LLM:
         Args:
             prompts: The prompts to the LLM. You may pass a sequence of prompts
                 for batch inference. See [PromptType][vllm.inputs.PromptType]
-                for more details about the format of each prompts.
+                for more details about the format of each prompt.
             sampling_params: The sampling parameters for text generation. If
                 None, we use the default sampling parameters.
                 When it is a single value, it is applied to every prompt.
@@ -364,14 +364,6 @@ class LLM:
             # Use default sampling params.
             sampling_params = self.get_default_sampling_params()
 
-        tokenization_kwargs: dict[str, Any] = {}
-        truncate_prompt_tokens = None
-        if isinstance(sampling_params, SamplingParams):
-            truncate_prompt_tokens = sampling_params.truncate_prompt_tokens
-
-        _validate_truncation_size(model_config.max_model_len,
-                                  truncate_prompt_tokens, tokenization_kwargs)
-
         # Add any modality specific loras to the corresponding prompts
         lora_request = self._get_modality_specific_lora_reqs(
             prompts, lora_request)
@@ -381,7 +373,6 @@ class LLM:
             params=sampling_params,
             use_tqdm=use_tqdm,
             lora_request=lora_request,
-            tokenization_kwargs=tokenization_kwargs,
             priority=priority,
         )
 
@@ -862,7 +853,7 @@ class LLM:
         Args:
             prompts: The prompts to the LLM. You may pass a sequence of prompts
                 for batch inference. See [PromptType][vllm.inputs.PromptType]
-                for more details about the format of each prompts.
+                for more details about the format of each prompt.
             pooling_params: The pooling parameters for pooling. If None, we
                 use the default pooling parameters.
             use_tqdm: If `True`, shows a tqdm progress bar.
@@ -871,6 +862,8 @@ class LLM:
                 If `False`, no progress bar is created.
             lora_request: LoRA request to use for generation, if any.
             pooling_task: Override the pooling task to use.
+            tokenization_kwargs: overrides tokenization_kwargs set in
+                pooling_params
 
         Returns:
             A list of `PoolingRequestOutput` objects containing the
@@ -916,24 +909,17 @@ class LLM:
             # Use default pooling params.
             pooling_params = PoolingParams()
 
-        if isinstance(pooling_params, PoolingParams):
-            pooling_params.verify(pooling_task, model_config)
-        else:
-            for pooling_param in pooling_params:
-                pooling_param.verify(pooling_task, model_config)
-
-        if tokenization_kwargs is None:
-            tokenization_kwargs = dict[str, Any]()
-            _validate_truncation_size(model_config.max_model_len,
-                                      truncate_prompt_tokens,
-                                      tokenization_kwargs)
+        for param in as_iter(pooling_params):
+            param.verify(pooling_task, model_config)
+            # for backwards compatibility
+            if truncate_prompt_tokens is not None:
+                param.truncate_prompt_tokens = truncate_prompt_tokens
 
         self._validate_and_add_requests(
             prompts=prompts,
             params=pooling_params,
             use_tqdm=use_tqdm,
             lora_request=lora_request,
-            tokenization_kwargs=tokenization_kwargs,
         )
 
         outputs = self._run_engine(use_tqdm=use_tqdm)
@@ -960,7 +946,7 @@ class LLM:
         Args:
             prompts: The prompts to the LLM. You may pass a sequence of prompts
                 for batch inference. See [PromptType][vllm.inputs.PromptType]
-                for more details about the format of each prompts.
+                for more details about the format of each prompt.
             pooling_params: The pooling parameters for pooling. If None, we
                 use the default pooling parameters.
             use_tqdm: If `True`, shows a tqdm progress bar.
@@ -1008,7 +994,7 @@ class LLM:
         Args:
             prompts: The prompts to the LLM. You may pass a sequence of prompts
                 for batch inference. See [PromptType][vllm.inputs.PromptType]
-                for more details about the format of each prompts.
+                for more details about the format of each prompt.
             use_tqdm: If `True`, shows a tqdm progress bar.
                 If a callable (e.g., `functools.partial(tqdm, leave=False)`),
                 it is used to create the progress bar.
@@ -1052,7 +1038,7 @@ class LLM:
         Args:
             prompts: The prompts to the LLM. You may pass a sequence of prompts
                 for batch inference. See [PromptType][vllm.inputs.PromptType]
-                for more details about the format of each prompts.
+                for more details about the format of each prompt.
             use_tqdm: If `True`, shows a tqdm progress bar.
                 If a callable (e.g., `functools.partial(tqdm, leave=False)`),
                 it is used to create the progress bar.
@@ -1156,8 +1142,7 @@ class LLM:
                 tokenization_kwargs=tokenization_kwargs,
             )
 
-            if envs.VLLM_USE_V1 and (token_type_ids := engine_prompt.pop(
-                    "token_type_ids", None)):
+            if (token_type_ids := engine_prompt.pop("token_type_ids", None)):
                 params = pooling_params.clone()
                 compressed = compress_token_type_ids(token_type_ids)
                 params.extra_kwargs = {"compressed_token_type_ids": compressed}
@@ -1386,7 +1371,6 @@ class LLM:
         *,
         use_tqdm: Union[bool, Callable[..., tqdm]] = True,
         lora_request: Optional[Union[Sequence[LoRARequest], LoRARequest]],
-        tokenization_kwargs: Optional[dict[str, Any]] = None,
         priority: Optional[list[int]] = None,
     ) -> None:
         if isinstance(prompts, (str, dict)):
@@ -1413,7 +1397,17 @@ class LLM:
             tqdm_func = use_tqdm if callable(use_tqdm) else tqdm
             it = tqdm_func(it, desc="Adding requests")
 
+        model_config = self.llm_engine.model_config
+
         for i, prompt in enumerate(it):
+
+            param = params[i] if isinstance(params, Sequence) else params
+
+            tokenization_kwargs: dict[str, Any] = {}
+            _validate_truncation_size(model_config.max_model_len,
+                                      param.truncate_prompt_tokens,
+                                      tokenization_kwargs)
+
             self._add_request(
                 prompt,
                 params[i] if isinstance(params, Sequence) else params,

vllm/entrypoints/openai/api_server.py

@@ -1805,17 +1805,13 @@ async def init_app_state(
         request_logger=request_logger,
         log_error_stack=args.log_error_stack,
     ) if "classify" in supported_tasks else None
-
-    enable_serving_reranking = ("classify" in supported_tasks and getattr(
-        model_config.hf_config, "num_labels", 0) == 1)
     state.openai_serving_scores = ServingScores(
         engine_client,
         model_config,
         state.openai_serving_models,
         request_logger=request_logger,
         log_error_stack=args.log_error_stack,
-    ) if ("embed" in supported_tasks or enable_serving_reranking) else None
-
+    ) if ("embed" in supported_tasks or "score" in supported_tasks) else None
     state.openai_serving_tokenization = OpenAIServingTokenization(
         engine_client,
         model_config,

vllm/entrypoints/openai/protocol.py

@@ -452,7 +452,7 @@ class ChatCompletionRequest(OpenAIBaseModel):
     min_tokens: int = 0
     skip_special_tokens: bool = True
     spaces_between_special_tokens: bool = True
-    truncate_prompt_tokens: Optional[Annotated[int, Field(ge=1)]] = None
+    truncate_prompt_tokens: Optional[Annotated[int, Field(ge=-1)]] = None
     prompt_logprobs: Optional[int] = None
     allowed_token_ids: Optional[list[int]] = None
     bad_words: list[str] = Field(default_factory=list)
@@ -995,7 +995,7 @@ class CompletionRequest(OpenAIBaseModel):
     min_tokens: int = 0
     skip_special_tokens: bool = True
     spaces_between_special_tokens: bool = True
-    truncate_prompt_tokens: Optional[Annotated[int, Field(ge=1)]] = None
+    truncate_prompt_tokens: Optional[Annotated[int, Field(ge=-1)]] = None
     allowed_token_ids: Optional[list[int]] = None
     prompt_logprobs: Optional[int] = None
     # --8<-- [end:completion-sampling-params]
@@ -1325,7 +1325,9 @@ class EmbeddingCompletionRequest(OpenAIBaseModel):
     # --8<-- [end:embedding-extra-params]
 
     def to_pooling_params(self):
-        return PoolingParams(dimensions=self.dimensions,
+        return PoolingParams(
+            truncate_prompt_tokens=self.truncate_prompt_tokens,
+            dimensions=self.dimensions,
             normalize=self.normalize)
 
 
@@ -1393,7 +1395,9 @@ class EmbeddingChatRequest(OpenAIBaseModel):
         return data
 
     def to_pooling_params(self):
-        return PoolingParams(dimensions=self.dimensions,
+        return PoolingParams(
+            truncate_prompt_tokens=self.truncate_prompt_tokens,
+            dimensions=self.dimensions,
             normalize=self.normalize)
 
 
@@ -1430,7 +1434,9 @@ class ScoreRequest(OpenAIBaseModel):
     # --8<-- [end:score-extra-params]
 
     def to_pooling_params(self):
-        return PoolingParams(activation=self.activation)
+        return PoolingParams(
+            truncate_prompt_tokens=self.truncate_prompt_tokens,
+            activation=self.activation)
 
 
 class RerankRequest(OpenAIBaseModel):
@@ -1460,7 +1466,9 @@ class RerankRequest(OpenAIBaseModel):
     # --8<-- [end:rerank-extra-params]
 
     def to_pooling_params(self):
-        return PoolingParams(activation=self.activation)
+        return PoolingParams(
+            truncate_prompt_tokens=self.truncate_prompt_tokens,
+            activation=self.activation)
 
 
 class RerankDocument(BaseModel):
@@ -1618,7 +1626,9 @@ class ClassificationRequest(OpenAIBaseModel):
     # --8<-- [end:classification-extra-params]
 
     def to_pooling_params(self):
-        return PoolingParams(activation=self.activation)
+        return PoolingParams(
+            truncate_prompt_tokens=self.truncate_prompt_tokens,
+            activation=self.activation)
 
 
 class ClassificationData(OpenAIBaseModel):

vllm/entrypoints/openai/serving_chat.py

@@ -237,7 +237,6 @@ class OpenAIServingChat(OpenAIServing):
                     documents=request.documents,
                     chat_template_kwargs=request.chat_template_kwargs,
                     tool_parser=tool_parser,
-                    truncate_prompt_tokens=request.truncate_prompt_tokens,
                     add_special_tokens=request.add_special_tokens,
                 )
             else:

vllm/entrypoints/openai/serving_classification.py

@@ -61,7 +61,6 @@ class ClassificationMixin(OpenAIServing):
                 ctx.request,
                 ctx.tokenizer,
                 ctx.request.input,
-                truncate_prompt_tokens=ctx.request.truncate_prompt_tokens,
             )
 
             return None
@@ -157,18 +156,6 @@ class ServingClassification(ClassificationMixin):
 
         return await super().handle(ctx)  # type: ignore
 
-    @override
-    def _validate_request(
-        self,
-        ctx: ClassificationServeContext,
-    ) -> Optional[ErrorResponse]:
-        if error := super()._validate_request(ctx):
-            return error
-
-        ctx.truncate_prompt_tokens = ctx.request.truncate_prompt_tokens
-
-        return None
-
     @override
     def _create_pooling_params(
         self,

vllm/entrypoints/openai/serving_completion.py

@@ -127,13 +127,16 @@ class OpenAIServingCompletion(OpenAIServing):
         try:
             lora_request = self._maybe_get_adapters(request)
 
-            tokenizer = await self.engine_client.get_tokenizer(lora_request)
+            if self.model_config.skip_tokenizer_init:
+                tokenizer = None
+            else:
+                tokenizer = await self.engine_client.get_tokenizer(lora_request
+                                                                   )
 
             request_prompts, engine_prompts = await self._preprocess_completion(
                 request,
                 tokenizer,
                 request.prompt,
-                truncate_prompt_tokens=request.truncate_prompt_tokens,
                 add_special_tokens=request.add_special_tokens,
             )
         except ValueError as e:

vllm/entrypoints/openai/serving_embedding.py

@@ -97,7 +97,6 @@ class EmbeddingMixin(OpenAIServing):
                     # so there is no need to append extra tokens to the input
                     add_generation_prompt=False,
                     continue_final_message=False,
-                    truncate_prompt_tokens=ctx.truncate_prompt_tokens,
                     add_special_tokens=ctx.request.add_special_tokens,
                 )
             else:
@@ -106,7 +105,6 @@ class EmbeddingMixin(OpenAIServing):
                      ctx.request,
                      tokenizer,
                      ctx.request.input,
-                     truncate_prompt_tokens=ctx.truncate_prompt_tokens,
                      add_special_tokens=ctx.request.add_special_tokens,
                  )
             return None
@@ -631,18 +629,6 @@ class OpenAIServingEmbedding(EmbeddingMixin):
 
         return await super().handle(ctx)  # type: ignore
 
-    @override
-    def _validate_request(
-        self,
-        ctx: ServeContext[EmbeddingRequest],
-    ) -> Optional[ErrorResponse]:
-        if error := super()._validate_request(ctx):
-            return error
-
-        ctx.truncate_prompt_tokens = ctx.request.truncate_prompt_tokens
-
-        return None
-
     @override
     def _create_pooling_params(
         self,

vllm/entrypoints/openai/serving_engine.py

@@ -67,7 +67,7 @@ from vllm.inputs.parse import parse_and_batch_prompt
 from vllm.logger import init_logger
 from vllm.lora.request import LoRARequest
 from vllm.multimodal import (  # noqa: F401 - Required to resolve Pydantic error in RequestProcessingMixin
-    MultiModalDataDict)
+    MultiModalDataDict, MultiModalUUIDDict)
 from vllm.outputs import PoolingRequestOutput, RequestOutput
 from vllm.pooling_params import PoolingParams
 from vllm.sampling_params import BeamSearchParams, SamplingParams
@@ -165,7 +165,6 @@ class ServeContext(RequestProcessingMixin, ResponseGenerationMixin, BaseModel,
 
     # Shared across most requests
     tokenizer: Optional[AnyTokenizer] = None
-    truncate_prompt_tokens: Optional[Annotated[int, Field(ge=1)]] = None
 
     # `protected_namespaces` resolves Pydantic v2's warning
     # on conflict with protected namespace "model_"
@@ -297,10 +296,8 @@ class OpenAIServing:
         truncate_prompt_tokens = getattr(ctx.request, "truncate_prompt_tokens",
                                          None)
 
-        if truncate_prompt_tokens is not None:
-            if truncate_prompt_tokens <= self.max_model_len:
-                ctx.truncate_prompt_tokens = truncate_prompt_tokens
-            else:
+        if truncate_prompt_tokens is not None and \
+            truncate_prompt_tokens > self.max_model_len:
             return self.create_error_response(
                 "truncate_prompt_tokens value is "
                 "greater than max_model_len."
@@ -526,9 +523,8 @@ class OpenAIServing:
     async def _normalize_prompt_text_to_input(
         self,
         request: AnyRequest,
-        tokenizer: AnyTokenizer,
         prompt: str,
-        truncate_prompt_tokens: Optional[Annotated[int, Field(ge=-1)]],
+        tokenizer: AnyTokenizer,
         add_special_tokens: bool,
     ) -> TextTokensPrompt:
         async_tokenizer = self._get_async_tokenizer(tokenizer)
@@ -538,6 +534,9 @@ class OpenAIServing:
                     "do_lower_case", False)):
             prompt = prompt.lower()
 
+        truncate_prompt_tokens = getattr(request, "truncate_prompt_tokens",
+                                         None)
+
         if truncate_prompt_tokens is None:
             encoded = await async_tokenizer(
                 prompt, add_special_tokens=add_special_tokens)
@@ -563,11 +562,11 @@ class OpenAIServing:
     async def _normalize_prompt_tokens_to_input(
         self,
         request: AnyRequest,
-        tokenizer: AnyTokenizer,
         prompt_ids: list[int],
-        truncate_prompt_tokens: Optional[Annotated[int, Field(ge=1)]],
+        tokenizer: Optional[AnyTokenizer],
     ) -> TextTokensPrompt:
-        async_tokenizer = self._get_async_tokenizer(tokenizer)
+        truncate_prompt_tokens = getattr(request, "truncate_prompt_tokens",
+                                         None)
 
         if truncate_prompt_tokens is None:
             input_ids = prompt_ids
@@ -576,6 +575,10 @@ class OpenAIServing:
         else:
             input_ids = prompt_ids[-truncate_prompt_tokens:]
 
+        if tokenizer is None:
+            input_text = ""
+        else:
+            async_tokenizer = self._get_async_tokenizer(tokenizer)
             input_text = await async_tokenizer.decode(input_ids)
 
         return self._validate_input(request, input_ids, input_text)
@@ -650,7 +653,6 @@ class OpenAIServing:
         request: AnyRequest,
         tokenizer: AnyTokenizer,
         prompt_input: Union[str, list[int]],
-        truncate_prompt_tokens: Optional[Annotated[int, Field(ge=-1)]] = None,
         add_special_tokens: bool = True,
     ) -> TextTokensPrompt:
         """
@@ -662,7 +664,6 @@ class OpenAIServing:
                 request,
                 tokenizer,
             [prompt_input],
-                truncate_prompt_tokens=truncate_prompt_tokens,
                 add_special_tokens=add_special_tokens,
         ):
             return result
@@ -673,7 +674,6 @@ class OpenAIServing:
         request: AnyRequest,
         tokenizer: AnyTokenizer,
         prompt_inputs: Iterable[Union[str, list[int]]],
-        truncate_prompt_tokens: Optional[Annotated[int, Field(ge=-1)]] = None,
         add_special_tokens: bool = True,
     ) -> AsyncGenerator[TextTokensPrompt, None]:
         """
@@ -681,30 +681,27 @@ class OpenAIServing:
         [`_tokenize_prompt_input_or_inputs`][vllm.entrypoints.openai.serving_engine.OpenAIServing._tokenize_prompt_input_or_inputs]
         that assumes multiple inputs.
         """
-        for text in prompt_inputs:
-            if isinstance(text, str):
+        for prompt in prompt_inputs:
+            if isinstance(prompt, str):
                 yield await self._normalize_prompt_text_to_input(
                     request,
-                    tokenizer,
-                    prompt=text,
-                    truncate_prompt_tokens=truncate_prompt_tokens,
+                    prompt=prompt,
+                    tokenizer=tokenizer,
                     add_special_tokens=add_special_tokens,
                 )
             else:
                 yield await self._normalize_prompt_tokens_to_input(
                     request,
-                    tokenizer,
-                    prompt_ids=text,
-                    truncate_prompt_tokens=truncate_prompt_tokens,
+                    prompt_ids=prompt,
+                    tokenizer=tokenizer,
                 )
 
     async def _tokenize_prompt_input_or_inputs_async(
         self,
         request: AnyRequest,
-        tokenizer: AnyTokenizer,
+        tokenizer: Optional[AnyTokenizer],
         input_or_inputs: Optional[Union[str, list[str], list[int],
                                         list[list[int]]]],
-        truncate_prompt_tokens: Optional[Annotated[int, Field(ge=-1)]] = None,
         add_special_tokens: bool = True,
     ) -> tuple[list[TextTokensPrompt], list[EmbedsPrompt]]:
         """
@@ -717,6 +714,12 @@ class OpenAIServing:
         inputs_embeds = list[EmbedsPrompt]()
         inputs_text = list[TextTokensPrompt]()
 
+        truncate_prompt_tokens = getattr(request, "truncate_prompt_tokens",
+                                         None)
+
+        if (truncate_prompt_tokens or 0) < 0:
+            truncate_prompt_tokens = self.max_model_len
+
         if (isinstance(request, CompletionRequest)
                 and request.prompt_embeds is not None):
             inputs_embeds.extend(
@@ -740,18 +743,16 @@ class OpenAIServing:
         tasks = []
         for prompt_input in batch_inputs:
             if prompt_input["is_tokens"] is False:
+                assert tokenizer is not None, \
+                    "Tokenizer is required for text prompts"
                 task = self._normalize_prompt_text_to_input(
                     request,
-                    tokenizer,
                     prompt_input["content"],
-                    truncate_prompt_tokens=truncate_prompt_tokens,
+                    tokenizer=tokenizer,
                     add_special_tokens=add_special_tokens)
             else:
                 task = self._normalize_prompt_tokens_to_input(
-                    request,
-                    tokenizer,
-                    prompt_input["content"],
-                    truncate_prompt_tokens=truncate_prompt_tokens)
+                    request, prompt_input["content"], tokenizer=tokenizer)
             tasks.append(task)
 
         # Wait for all tokenization tasks to complete
@@ -766,9 +767,8 @@ class OpenAIServing:
         request: Union[DetokenizeRequest, EmbeddingCompletionRequest,
                        RerankRequest, ClassificationRequest, ScoreRequest,
                        TokenizeCompletionRequest],
-        tokenizer: AnyTokenizer,
+        tokenizer: Optional[AnyTokenizer],
         input_or_inputs: Union[str, list[str], list[int], list[list[int]]],
-        truncate_prompt_tokens: Optional[Annotated[int, Field(ge=-1)]] = ...,
         add_special_tokens: bool = ...,
     ) -> tuple[list[TextTokensPrompt], list[EngineTokensPrompt]]:
         ...
@@ -777,10 +777,9 @@ class OpenAIServing:
     async def _preprocess_completion(
         self,
         request: CompletionRequest,
-        tokenizer: AnyTokenizer,
+        tokenizer: Optional[AnyTokenizer],
         input_or_inputs: Optional[Union[str, list[str], list[int],
                                         list[list[int]]]],
-        truncate_prompt_tokens: Optional[Annotated[int, Field(ge=-1)]] = ...,
         add_special_tokens: bool = ...,
     ) -> tuple[list[Union[TextTokensPrompt, EmbedsPrompt]], list[Union[
             EngineTokensPrompt, EngineEmbedsPrompt]]]:
@@ -789,10 +788,9 @@ class OpenAIServing:
     async def _preprocess_completion(
         self,
         request: CompletionLikeRequest,
-        tokenizer: AnyTokenizer,
+        tokenizer: Optional[AnyTokenizer],
         input_or_inputs: Optional[Union[str, list[str], list[int],
                                         list[list[int]]]],
-        truncate_prompt_tokens: Optional[Annotated[int, Field(ge=-1)]] = None,
         add_special_tokens: bool = True,
     ) -> tuple[Union[list[TextTokensPrompt], list[Union[
             TextTokensPrompt, EmbedsPrompt]]], Union[
@@ -809,7 +807,6 @@ class OpenAIServing:
              request,
              tokenizer,
              input_or_inputs,
-             truncate_prompt_tokens=truncate_prompt_tokens,
              add_special_tokens=add_special_tokens,
          )
 
@@ -862,7 +859,6 @@ class OpenAIServing:
         documents: Optional[list[dict[str, str]]] = None,
         chat_template_kwargs: Optional[dict[str, Any]] = None,
         tool_parser: Optional[Callable[[AnyTokenizer], ToolParser]] = None,
-        truncate_prompt_tokens: Optional[Annotated[int, Field(ge=1)]] = None,
         add_special_tokens: bool = False,
     ) -> tuple[list[ConversationMessage], Sequence[RequestPrompt],
                list[EngineTokensPrompt]]:
@@ -937,7 +933,6 @@ class OpenAIServing:
                 request,
                 tokenizer,
                 request_prompt,
-                truncate_prompt_tokens=truncate_prompt_tokens,
                 add_special_tokens=add_special_tokens,
             )
         else:

vllm/entrypoints/openai/serving_pooling.py

@@ -120,7 +120,6 @@ class OpenAIServingPooling(OpenAIServing):
                     # so there is no need to append extra tokens to the input
                     add_generation_prompt=False,
                     continue_final_message=False,
-                    truncate_prompt_tokens=truncate_prompt_tokens,
                     add_special_tokens=request.add_special_tokens,
                 )
             else:
@@ -129,7 +128,6 @@ class OpenAIServingPooling(OpenAIServing):
                      request,
                      tokenizer,
                      request.input,
-                     truncate_prompt_tokens=truncate_prompt_tokens,
                      add_special_tokens=request.add_special_tokens,
                  )
         except (ValueError, TypeError, jinja2.TemplateError) as e:

vllm/entrypoints/openai/serving_score.py

@@ -7,7 +7,6 @@ from typing import Any, Optional, Union
 
 from fastapi import Request
 
-from vllm import envs
 from vllm.config import ModelConfig
 from vllm.engine.protocol import EngineClient
 from vllm.entrypoints.logger import RequestLogger
@@ -229,8 +228,7 @@ class ServingScores(OpenAIServing):
                              params=default_pooling_params,
                              lora_request=lora_request)
 
-            if envs.VLLM_USE_V1 and (token_type_ids := engine_prompt.pop(
-                    "token_type_ids", None)):
+            if (token_type_ids := engine_prompt.pop("token_type_ids", None)):
                 pooling_params = default_pooling_params.clone()
                 compressed = compress_token_type_ids(token_type_ids)
                 pooling_params.extra_kwargs = {
@@ -268,12 +266,14 @@ class ServingScores(OpenAIServing):
         request: Union[ScoreRequest, RerankRequest],
         request_id: str,
         raw_request: Optional[Request] = None,
-        truncate_prompt_tokens: Optional[int] = None,
     ) -> Union[list[PoolingRequestOutput], ErrorResponse]:
         lora_request = self._maybe_get_adapters(request)
 
         tokenizer = await self.engine_client.get_tokenizer(lora_request)
 
+        truncate_prompt_tokens = getattr(request, "truncate_prompt_tokens",
+                                         None)
+
         tokenization_kwargs: dict[str, Any] = {}
         _validate_truncation_size(self.max_model_len, truncate_prompt_tokens,
                                   tokenization_kwargs)
@@ -345,7 +345,6 @@ class ServingScores(OpenAIServing):
                 request,
                 request_id,
                 raw_request,
-                request.truncate_prompt_tokens,
             )
             if isinstance(final_res_batch, ErrorResponse):
                 return final_res_batch
@@ -393,7 +392,6 @@ class ServingScores(OpenAIServing):
                 request,
                 request_id,
                 raw_request,
-                request.truncate_prompt_tokens,
             )
             if isinstance(final_res_batch, ErrorResponse):
                 return final_res_batch

vllm/envs.py

@@ -99,6 +99,7 @@ if TYPE_CHECKING:
     VLLM_ROCM_USE_AITER_RMSNORM: bool = True
     VLLM_ROCM_USE_AITER_MLA: bool = True
     VLLM_ROCM_USE_AITER_MHA: bool = True
+    VLLM_ROCM_USE_AITER_FP8BMM: bool = True
     VLLM_ROCM_USE_SKINNY_GEMM: bool = True
     VLLM_ROCM_FP8_PADDING: bool = True
     VLLM_ROCM_MOE_PADDING: bool = True
@@ -774,6 +775,12 @@ environment_variables: dict[str, Callable[[], Any]] = {
     lambda: (os.getenv("VLLM_ROCM_USE_AITER_MHA", "True").lower() in
              ("true", "1")),
 
+    # Whether to use aiter triton fp8 bmm kernel
+    # By default is enabled.
+    "VLLM_ROCM_USE_AITER_FP8BMM":
+    lambda: (os.getenv("VLLM_ROCM_USE_AITER_FP8BMM", "True").lower() in
+             ("true", "1")),
+
     # use rocm skinny gemms
     "VLLM_ROCM_USE_SKINNY_GEMM":
     lambda: (os.getenv("VLLM_ROCM_USE_SKINNY_GEMM", "True").lower() in
@@ -1272,6 +1279,7 @@ def compute_hash() -> str:
         "VLLM_ROCM_USE_AITER_RMSNORM",
         "VLLM_ROCM_USE_AITER_MLA",
         "VLLM_ROCM_USE_AITER_MHA",
+        "VLLM_ROCM_USE_AITER_FP8BMM",
         "VLLM_ROCM_USE_SKINNY_GEMM",
         "VLLM_ROCM_FP8_PADDING",
         "VLLM_ROCM_MOE_PADDING",